The admin(s) of mastodon.world have made a post about their official stance, and since (to my knowledge) the same folks also run lemmy.world, it's probably reasonable to assume a similar stance applies here as well.

https://mastodon.world/@mwadmin/110654590632768079

I just tried this and it happened for me, too. I saw a few different usernames pop up in the handful of times I tried it.