Speculative keywords

I am in a gaming niche (no warez) and want to ask if mentioning certain KWs like crack, download, torrent can bring me some visitors who search for longtails or can it hurt my rankings ? (I dont plan to post such content on my web)

Generally, can Google detect if content doesnt match KWs, meta description etc ? Thanks

crack/warez sites fail to deliver actual cracked software almost all the time, so my answer would be no.

You best source of information is to simply google the kw's you are thinking about using, and see what content is actually on the site of the top-ranked sites. Monkey-see, monkey-do.