Tildes, for what it's worth, is not intended to be a replacement for Reddit. Its creator/admin is trying to purposefully cultivate a very different culture than what you might find on Reddit or Reddit replacements like lemmy/kbin/squabbles/discuit/etc. From their Philosophy page:

High-quality content and discussions
Tildes prioritizes quality content and discussion through its mechanics, design, and organization. Fixation on growth and related metrics results in other sites having a bias towards high-appeal, low-depth content like funny images, gifs, and memes. The priority on Tildes is to cultivate high-quality communities, which are far easier to build when they don't have to fight an uphill battle against the platform itself.

Limited tolerance, especially for assholes
Tildes will not be a victim of the paradox of tolerance; my philosophy is closer to "if your website's full of assholes, it's your fault".

This is a difficult topic, so I want to try to be clear about where on the spectrum Tildes is trying to land. I'm never going to refer to the site as a "safe space" or ban anyone just for occasionally acting like a jerk in an argument—I'd probably have to ban myself fairly quickly. However, it will also never be described as anything like "an absolute free speech site".

Personally as an old, I love it. The whole vibe promotes longer, better thought out replies, as opposed to the modern internet where people are more often looking to do quick hit n' run posts with popular sentiments for easy internet points. I also love the proactive removal of problem posters. Some people are just looking to stir up trouble wherever they go, but don't fall under a specific rule that might get their account axed. Tildes isn't afraid to uninvite problematic assholes.

If its culture is something that resonates with you, feel free to hit me up for an invite while I have some.