Honestly, I haven’t seen too many CGC/BGS people on here like that. I’ve seen a lot more irrational hatred toward CGC than anything else.
Granted, there are legitimate reasons to be annoyed by CGC (and I and others have not been afraid to highlight those shortcomings). But a lot of the dislike for CGC seems to be visceral and inconcrete. Whereas I’ve seen plenty of criticism of PSA, but the criticism generally seems to be more measured and reasonable.
And then BGS is sort of just an afterthought because of how low their market share is (even compared to CGC). I haven’t see too many BGS detractors or supporters on this forum.
On Reddit/FB, pretty much everyone (regardless of which company they prefer) falls into the first bucket, though.