Yes, well read the article. I'm not saying it's happening here, or it isn't. I don't work for the NSA or GCHQ.
Read the article, take a look at some of the people who have been extremely active in the political forum and make up your own mind. Their behaviour is very odd, but makes perfect sense if you look at it from this perspective.
You don't have to believe it, I am not convinced.
Have you ever been in a gaming parlour online? There are often employees of the company pretending to be real players for whatever business purposes. Read Amazon reviews with page after page of "genuine" people praising to the skies a book that you happen to own and you know is useless?
The GCHQ program is the same thing, but on a global level, in relationship to politics. It's not paranoia to assume that it's being done, particularly not after Snowden confirmed it. The only question is whether it happens here or not.
As for the people I had in mind, no I don't think they are Russian, as they make typical native English speaker typos or grammatical errors, alt. continental European oozing out of every line they write. Or they write stuff that is so incorrect or prejudiced that it's unrealistic in the extreme that a Russian person should come to a site like this and start making such statements.
Of course, you can never know for certain who's who online, and people can deliberately try to give out signals of being another nationality than they actually are. Just throwing it out there, because I actually did get a feeling I was dealing with people who were paid to just spit out nonsense of a certain political flavour. Frankly I'd prefer it if this feeling was wrong though - it would be an incredibly sinister situation.