Wu is always fond of bitterly shitting on more popular indie games that blow R60 out of the water. She's also called The Binding of Isaac "a stupid game where you shoot tears at poop," dismissed undertale as nothing special if I'm remembering correctly, and now she's calling no man's sky boring after its basically took enough time to make the game the best it can be. She hates seeing all these other indie devs making successful, beloved games with only a fraction of the resources she had because it only drives it in that even with a massive advantage (e.i sugar daddy funding) over everyone else and after doing all she can to stir up controversy to get attention her game is really nothing more than a forgotten shitstain on the walls of indie gaming.
I think the thing that irritates people is that BriBri loves to speak as though her opinion is some kind of technical insight or game dev law, when it's really just an opinion.
Most people can handle just saying "I don't like X because Y and Z", but she'll always phrase it as "X was not a good game at all. From a technical standpoint, the use of Z is ridiculous, and Y is just extra garbage thrown at the player for no real benefit. Not good design in the least."
She talks like this, as many do, because she's insecure and wants to sound intelligent and insightful, but I think it winds up being one of the biggest things people hate about her. It's a really pretentious and self-important way to speak, and I've long wondered if people might not be better disposed towards her (or at least, harbor less open hatred for her) if she didn't do this shit.
For example, I didn't really enjoy Undertale. I thought it felt like something that was designed from the ground up to be a cult hit, and it was trying way too hard to be a sooper deep and amazing game with omglolzrandom humor. It wasn't a bad game though. Undertale was an amazing game, with a lot of time and care put into it. I just didn't fucking like it, and that's fine.
It's odd, but I really do think if she learned to phrase an opinion without trying to come off like an expert people would hate her less. After all she's done, it's still easily the most irritating aspect of the Wu persona.