I think a bigger problem is that like Reddit or Facebook Lemmy.world lets these people continue to post and participate there, most only get temporary bans, I distinctly remember a person who used the R-slur multiple times and was blatantly transphobic, yet last I checked he only got temp banned, and otherwise are completely welcome back even after such atrocious behavior.
One user I can refer to is Mojave, but he certainly isn’t the only case, there are plenty more like him. I remember he had quite the abusive spree in !egg_irl, if memory serves he made quite a few transphobic attacks, unfortunately it doesn’t show up in the modlog because they purged him rather than removing (he also apparently had some very bad behavior in !transfem but I’m not there and don’t remember it).