Yes it does. You take the good with the bad. You can always ask hn@ycombinator.com about your submission; if it gets a bunch of upvotes but winds up 30 pages down the site, that's a pretty good indicator that something happened.
Yep. I think that's just kind of an unavoidable side-effect of the service offered. It'd be interesting to know the statistics of what sort of stuff gets blocked.
