This is something that lemmy devs need to better address.

I mean, it’s not like there are big warnings at the top of lemmy.ml’s sign-up page and join-lemmy.org that tell you not too (with a link where to find other instances)… *end sarcasm

But really, how much more adressing do they need to do? Just close off join requests all together? Because I don’t think it can be much more clear to be honest.