This trend isn't limited to HN. When talking to people (even lawyers and such who I know do not read HN) that have dealt with Khosla, I have repeatedly heard that he is shady, but I have yet to hear any concrete examples. From everything I read about him on TechCrunch and elsewhere though, he sounds like a great investor to have...

See the shoreline access issue below. To me, that whole matter signals someone impossible to work with. If he were of decent moral fiber and wisdom, he would have found a workable arrangement that preserves public and personal interests. Going to trial was just even more embarrassing.

You can see reviews on thefunded: http://thefunded.com/funds/show/Khosla+Ventures

Wow rated 2.8, I was not aware of this website, but these reviews seem really problematic for startups accepting money from them. By accepting this partnership with them, is Paul Graham kind of vouching that these guys are actually good for startups? I wonder if a startup could refuse their money, but then again there are so many startups, it may be hard to take the moral ground.

I don't think they get nearly as much control through YC as when a startup goes to them for say a Series A, so there's not that much harm they can do.