173
Piefed has one built-in, Voyager has it client side, there are probably other apps too, feel free to share your list in the comments
(i.imgflip.com)
Seems like a good reminder as this topic shows up regularly
I only have 15 user accounts in my blocked list, although that is because PieFed allows blocking all users from an instance, so I have blocked all from lemmy.ml (and PieFed.social is already defederated from hexbear and lemmygrad).
Having to go through and block so many people individually was just far too much of a pain - I can see why people leave Lemmy over exactly this issue (and then complain about Lemmy over on Reddit for being somehow even more toxic than there - the trick is that once you get the blocklist right then the average interaction is better on the Threadiverse, though truthfully the maximally worst ones are also here as well, extremely unfortunately especially in terms of our growth or rather lack thereof).
It's incredibly rare for me to block users. It's all keyword blocks (e.g. Elon). Some domains like dailymail were good to block, but I don't think Boost lets me do that.