I don't like the mob thing either but it's how large group dynamics on the internet work (by default). We try to mitigate it where we can but there's not a lot of knowledge about how to do that.
- the voting behaviour is just like reddit or rather just as bad - it is herd voting, flippant voting (but I really don't think how this can be fixed; maybe it can't be - but that is how it is to be honest and maybe it's time we acknowledged it)
- there is a sense of "aura/legend" attached to certain users, I find it maybe a bit extra weird because I am not from the US (later about it), and maybe not from the "in" crowd that I can't understand the why of it (I would not have known even if I knew of those users) - useless/meaningless/contentless comments get upvoted and reach the top -- not showing showing rank/voting might be a great idea imho (again, I really don't know how this can be fixed or whether this has to be fixed)
- HN seems like a "US only" forum largely, maybe that's the intention, I am not sure. I mean some comments and even posts just make it look like everything and everywhere works as it works in the USA
- Brigading or soft-brigading either just happens or maybe allowed as well - esp. on political threads - maybe just do not allow politics at all (no exceptions!) or those might need extra attention. I mean there is no point in allowing a political post when it ends up just getting raided. Also I often feel political posts specifically about USA are more kosher than political posts about other places.
- Encourage non-technical discussions more (but with the exception of political posts :P) - personally my best experiences on hn have actually been on non-tech/sw/hw posts really
One of the things I like about hn is its simplicity but maybe wouldn't mind "sections" or "categories" for different types of posts. Again this has its own trade offs.
I mean it's not so bad and whatever is bad maybe cannot even be fixed.