This is potentially a very silly question but it also occurs to me that this may be far more complicated than first glance. It could even vary by instance. Are reports sent only to the moderators of the given community or admins as well? Maybe even the admins of the troublemaker's instance?
I believe it's this, but i'm not certain: Reports are sent to mods of the community where the reported content is, the admins of the instance where the reported content is, and the admins of the instance the reporting user is logged in. Also keep in mind reports are not anonymous, mods can see who sent it.
Yeah and it's not just relorts. Overall, one of the biggest flaws with Lemmy right now is user privacy. Assume everything you send here in any capacity is undeletable and viewable by anyone. (It's not that bad, but better safe than sorry).