Joined: May '09
Age: 36 (M)
Yeah I guess posting is almost the only way to get points, or being lucky with the safe. I myself registered at Twitter some days ago and was lucky to be 1 of the 100 who get 1000 points each 100 followers.
Joined: Aug '07
Age: 38 (M)
You can also start using Twitter actively, get some followers, make some interesting tweets, and once in a while make a post (tweet) containing your bankrollmob affiliate link. It's just like having a blog/website, only micro.... so, microblogging.