Yeah not only that, it peeves people off, as they have to spend evening playing someone elses stuff, and often being in that negative space they do not play at their best
I think that's actually it, you nailed it. You're sitting there, you've worked on all your openings, and you're pretty ready for anything, and they throw this crap on the board and you couldn't have been ready for it. You can't study everything, so you had to spend time on the important stuff. And what's more, what's really annoying, is that you know the opening is crap, but you know they've sat at their computer for probably weeks coming up with all the damned responses with Stockfish and you know, damned good and well, you're about to have a very difficult game, or lose, to this stupid opening. And they KNOW you think it's stupid, and they are counting on that very thing. It does kinda piss ya off really.
There was a player here in Indiana who played this often, in the Indiana State Championships even. I think it's a garbage opening, but here is the thing. If you play with just about any opening long enough, work out the obvious replies, then you can win a lot of your games with a crap opening just because most people will be surprised and had not prepared against it.
Yeah not only that, it peeves people off, as they have to spend evening playing someone elses stuff, and often being in that negative space they do not play at their best