I had never actually seen or heard one, until today (although I had heard about them, and know the GRU is really always working).
A long story, but knew it when he said he was going to send Dan Bongino over to beat me down (I didn't even know who Dan Bangino was, looked him up, he's some sort of Conservative talk host or something). Then looked for the guy's profile, it disappeared.
Guess the Internet still has this problem.
Oh well, just wanted to let everyone know they're still lurking around out here :-)