Oddly, FWIW, I haven't noticed any explicit retaliation from "elsewhere"... Doesn't mean it hasn't taken place, just means I haven't personally seen it. The "other" board seems too wrapped up in its own world to really notice a lot of what is going on over here.
What I have seen is gross incompetence in management and technical skills on the other aside... Lost photos, posts, etc. As to whether there are any actual malicious acts or just the raw incompetence, well, jury is still out on that.
As time goes on, I've lost about a quarter of my posts over the last 18 mos, and maybe more than that.
Are they being deleted out of incompetence?
If so, no retaliation. Personally, I'm not afraid... I'm not saying others shouldn't be. I for one don't care what they're doing over there... It won't affect you here attyy least.
Just my thoughts, FWIW.