I am a newbie that joined DU last November.

Although I have learned a lot since my first posting (& subsequent lambasting), I would like some clarification on when people click the rec button. Sometimes I see a post that is (at least imho) very dramatic, heartwarming, hilarious, etc. that has a lot of views but will have like 2 recs. Will someone please enlighten me on when you rec and when you don't?