"The worst thing to post or upvote is something that's intensely but shallowly interesting. Gossip about famous people, funny or cute pictures or videos, partisan political articles, etc. If you let that sort of thing onto a news site, it will push aside the deeply interesting stuff, which tends to be quieter." - http://ycombinator.com/newswelcome.html

I'm pretty sure that personal experiences of discrimination qualify as "intensely but shallowly interesting" content. It's "intense" because racial/sexual/etc. discrimination is a very charged topic that people get passionate about. (Not that this is bad, it's just the current state of things.)

It's "shallowly interesting" because it doesn't teach us anything except "some companies are racist sometimes", which everyone already knows. If companies in field X are especially racist, that might be interesting. If specific company Y was really racist, that might be interesting. If people were more or less racist under circumstance Z, that might be interesting, etc. But since this kind of content doesn't name specifics, all we can take away is "some employers are racist sometimes under some circumstances" (according to one person, whose account might or might not be completely accurate). That hasn't been new information since, well, ever. Even if you went back to 1900, everyone would already know this, it's just that most people would agree with it, instead of objecting like modern-day people would.