OP is talking about the infamous hate site Kiwifarms, which she's a member of. Proof of this: Click the link I just wrote. It's archived, so UK users can view it. You can see that the OP in the Kiwifarms thread I just linked, "MoeAnguish", includes text links to archived Lemmy posts (in the words "strong" and "dislike"), specifically, Lemmy posts that talk about Leni being a Kiwifarms user. The Kiwifarms thread was made less than a day after the Lemmy post that talks about her being a Kiwifarms member. Leni has also hidden links to her Kiwifarms posts in Lemmy comments as well. In the word "question" in the first one, and in the word "overrated" in the second comment. Those links go to Kiwifarms posts by "MoeAnguish". Same writing style and opinions as well. Context of the Kiwifarms thread is about being recognised on other sites.

On page 2 (also archived, so UK users can see it) of the KiwiFarms thread, there's a reply by Leni/MoeAnguish where she is gloating about me not approving of her defending Kiwifarms as a "free speech" site here on Lemmy on her Call Me Leni account (proof, scroll down to see Leni's comment), and "skirting the law" is her referring to me saying I had to use TOR to access the site as I am from the UK. She also made the implication that I dislike Kiwifarms because I'm trans or autistic: "He probably flipped when I defended KF because he falls under the two demographics most known for seeing themselves as at odds with it." The two demographics Kiwifarms harasses the most are trans and autistic people.

In case the posts/comments get edited to remove the cross linking: (or if Kiwifarms is blocked in your country)

Archive 1 Archive 2

To answer your question about why Kiwifarms is looked down upon, a couple paragraphs from Wikipedia is sufficient to understand why:

Kiwi Farms, formerly known as CWCki Forums (/ˈkwɪki/ KWIH-kee), is a web forum that facilitates the discussion and harassment of online figures and communities. Their targets are often subject to organized group trolling and stalking, as well as doxing and real-life harassment.[3][4][5] Kiwi Farms has been tied to the suicides of three people who were victims of harassment by the website.[6][7][8]

The site targets transgender people,[4][15] people with disabilities,[16][17] and those its users believe to be neurodivergent.[16][17][15] Targets of harassment are referred to on the forum as "lolcows", named after the idea that they can be "milked for laughs".[18] Tactics include publishing their victims' personal information ("doxing"), trying to get them fired from their jobs, reporting crimes at their addresses in an attempt to have police dispatched to their homes ("swatting"), and harassing their family members and friends. Some of Kiwi Farms' harassment campaigns have continued for months or years, and some aim to drive the targets to suicide.[4][19] Both the site's owner Moon and the userbase of Kiwi Farms have been described as antisemitic, with Kiwi Farms users targeting a transgender Jewish convert with antisemitic abuse.[20][21]

Discord's purpose is for direct messaging friends and joining chat servers. The purpose of Kiwifarms is to spread hate. It was also responsible for the suicide of the Higan/BSNES emulator developer, Near/Byuu.

Near stated that they and their friends had been doxxed and goaded into suicide by members of the website, and that Near had been mocked for being autistic

Discord is a huge platform, with a multitude of servers with good portion of users discussing there casually without willfully causing harm.

KF's main purpose of existence is to harass and target vulnerable people. It deserves to be shunned and shamed­, and anyone using that platform deserves to be ostracized.

Looked down by whom?
What is "KF"?

Discord: becomes affiliated with perpetrators of mass violence

Is it?

Discord is not specifically allied or affiliated with any of these perpetrators of mass violence is the reason why; they were the medium that these mass violence perpetrators used to keep either private diaries or communicate their ideas with others. This is not being an ally, this is the nature of a communication service. Given the constant noise on that service generated via conversations, live streams, groups, these perpetrators might not be seen by the platform owners.

Kiwi Farms went out of it's way to act as a hub and nerve center for harassing trans people; the methods: doxxing, death threats, stalking, outing their personal information, dead naming. In many cases, under the burden of this constant harassment, many killed themselves to get relief from sustained attacks against them. Those fuckers are rightfully hated and deserve to be gone, never have I seen a hive of villainy and filth quite like them. What you have stated: "KF: becomes affiliated with more petty harassers, and everyone wants them gone" is a gross understatement of their impact on vulnerable people. Eww, Kiwi Farms if you don't believe my claims.

Discord has a much larger userbase tham KiwiFarms.

Discord's admin team doesn't condone or call for this type of stuff, it just so happens that people used their platform for bad things. It's near impossible to manually keep an eye on things at their scale, and doing so would violate people's privacy as it's a messaging platform with plenty of private communities and chats.

The admin of KiwiFarms actively condones and engages in the harassment of people. It's quite literally their founded purpose. Chris Chan isn't a great person, but she doesn't deserve harassment. The KiwiFarms community went after one socially-awkward person with a neurological condition, and then decided it wanted to go after anybody else who might be slightly socially awkward.

I was in a community one time with someone who was socially awkward, but genuinely a well-meaning person. I'm not naming names, but I eventually found out that people had a harassment campaign against her for the most mundane of reasons.

"Becoming associated" with "petty" harassers is misleading and you know that. They were founded to be an harassment campaign, and grew to harass others to the point of suicide, which they then continue to mock after death. All this because a bunch of sad individuals need to put others down in order to feel better about themselves when in actuality they're worse than the people they harass to the point of killing themselves for an escape.

I hope you know that you and anybody else who uses that site will never amount to anything more than accessories to crime. If you really need to feel better about yourself, then howsabout you delete your KF account, go outside, and get a life?