How do you know you're in a bad sport lobby? When everybody wears those hats? I hope im not in a bad sport lobby right now... no one has those hats, but they keep killing me.
check out loudanddumb's post above. A good indicator you're in a griefer lobby is the levels of these Village Idiots relative to yours. The dufus preaching crack in the video (Malone Gunz) was at level 146. He was smack talking another lower level player (rEz KroNIC aka Forest Gump who was at level 31 and being verbally harrassed by Gunz in the video). Chances are this particular griefer (Malone Gunz) probably ended up stalking/killing that lvl 31 player in free mode.
I felt sorry for that lvl 31 fool when I first saw that vid.
Well almost. Because then again, they were all in a bad sport lobby....
edit: and oh yes, R* does give you small cash bonuses from time to time for being a good sport. Check your money stats.