I wouldn’t say it’s 100% impossible that there was one or more forum poster here in the political forum that was really from China or Russia just attempting to sew political discord.
I’ve thought thought that but spent a ton of time getting to know both sides because until 2016, I was on the right and willing to argue positions friendly to the right. Through that, I got to know a bunch of people via PMs and friendliness whereupon bits of personal information difficult to fake would arise. After 2016, I dissented and drifted what one would call leftward and had the same thing happen with people on the other side of the spectrum.
I can report that unless somebody in America is being paid by Turkey or Russia, and it is a recent development, I really doubt it. The main contentious people on the board on both sides are arguing passionately and I don’t think anybody is performing under the aegis of anybody nefarious.
That is just my opinion, but I have spent the better part of ten years on this site logging countless hours here. Whether it’s contact with the parties from the SP or just in casual conversation, I just honestly doubt that has happened.