But the only reason that makes you think that they belong to said right-wing forum is because they entertain this talking point, and their dislike of Marcan.

It sounds quite cyclical. They dislike Marcan because they're alt-right users leeching off this community's reputation, which is obvious because they dislike Marcan.

The people on the link you sent, they, uh, have a long comment history. No one is being "pretend-part" of the community here. Or am I missing some context?