I can't see anything legally or morally objectionable in the questions you cite. The “kinda” one is a bit of an exception, but it asks about the legality.
Mentions of specific torrent-related websites or communities that are known to practice copyright infringement would be a different matter. But such questions would tend to be off-topic here anyway, they're Webapps.SEWebapps.SE's problem. Furthermore this wouldn't really be a matter for the community to decide, as the SE team must follow US legislation (since SE is hosted in the US) — it's up to them to edict a policy on US-legally dodgy topics. But again, questions purely about the technology are not concerned here.
There is no such thing as an intrinsically illegal or immoral technology. (I mean, there are mass mailing questions on SO and SF...) Please do not close or flag questions just because you think the answer may perhaps be used for illegal purposes.