Hi Tomato - a lot of what you're saying here has already been addressed elsewhere in the thread. The OP isn't just addressing Lemmy, but other Fediverse services like Mastodon as well. He also notes in the article several people who been addressing ways in which Fediverse culture has been toxic to black users. These aren't imagined problems, they exist in a lot of places off of and on Lemmy, and providing suggestions to make these sites better for black users is a good thing, not something to get defensive about. This post isn't accusing you personally of anything, but if you feel challenged by it then it might be a good opportunity for you to interrogate those feelings.

Also, others have addressed your comments about not seeing other's race online, etc, but I think it's worth taking a step back and pausing. If people of color say they experience racism online, even though you don't notice what race other people are, do you think it's possible that there may be systemic problems or unconscious biases that might cause those folks to experience racism even when it is unintended? Those are the kinds of problems that aren't solved by saying "I don't say racist things to people and I don't see color". They're problems that are built into our society just by the fact that we were all born and raised in an imperfect culture.

Nobody is accusing anyone of anything here, and nobody is trying to make anyone feel ashamed of who they are. But we can all benefit from stopping, thinking about the ways that we interact with others, and taking the time to try and be sure that we aren't acting in ways that harm others even if that isn't our intent or we weren't aware of the harm in the first place.