Lemmy users can be very weird when it comes to hills to die on. Every social media is federated through screenshots after all.
Personally, I would like more content and active boards, so I'm okay with the reposts because it makes Lemmy a more viable option to replace reddit and make users switch and post real content here.
Actually, when reddit started out the admins themselves had sock puppets to make it look more lively.
Which legal limits? The US? Iran? Whose moral compass does a site need to follow. Legality/morality as an argument on the global Internet is weak in my mind. Also why should a hoster be in charge of what is ethic and what is not? Take spider-man, were the prideflag removal mods stupid? Yes. Does it mean nexus should remove them? No.