Those aren't arbitrary. They are often pre-decided by higher ups in the company, or pre-decided as the prevailing groupthink in some forum or mailing list. People have been calling this stuff out online for years! Funnily enough, it stays out of the consciousness of normal people, because it's never covered in the mainstream news. Invariably, the people doing the exposing are then labeled something unsavory, so very few people bother to look into it. Some of this stuff is bunk. However, some of it is clearly real, and kinda disgusting.

Stuff like this has even been going on since the 80's: https://en.wikipedia.org/wiki/Manufacturing_Consent

What I'm saying is that even if one corrects for ideological motives, obsequiousness to power, etc., one is still left with an independent incentive towards maximizing eyeballs, and therefore torturing complex realities into digestible narratives, and that can be a problem in and of itself.