I don't think it's illegal. If photos get posted to Facebook or VK they are public domain and free for other people to see. If photos are made and posted outside their apartments then they are not property of RLC.
If they didn't want their pictures to be seen they wouldn't have posted them. Once they are public domain they can be posted anywhere. Just certain sites have a policy of not exploiting their personal lives outside of their confines.
You are correct, it's not illegal. Besides, these photos were posted on a publicly available site in a publicly available mode. And they are old, and many of us have already seen the pictures.
Regarding bans, RLC seems to do whatever it wants.
As far as CC is concerned the official rules are: No hacking into private files or systems, no posting of virus or malware programs, no posting of content that can be defined as sexual exploitation of people under the age of consent, not posting of information that could lead to harm of our beloved RLC tenants, and no pissing off Squirrel.
I have my own opinion about posting of "personal" files, (I consider it to be unwise unless done through PMs) but my ideas have not been adopted as hard and fast rules. And besides, Leora is a goddess. And I wouldn't think of banning any current and productive poster to this board.
Now, as far as that gif of Scooter humping the pillow, well, we might have to announce a ban on beastiality. That, along with that dog in general, is just tasteless. (Leora should have adopted a squirrel instead... ;D )
I don't think the pictures in question are going to get someone to go to Krasnoyarsk to stalk out Leora. If it does that person seriously has issues.