Chat in 5 min to get sb points is well....very very easy to do, so to gain sb points from that would be harmful than beneficiary. As for the *post something*, posting stuff
relevant and beneficiary to the forum (think an ebook, or a mod) does give you sb points, and if that's not possible, actively participating in the forum (not spamming or posting anything unrelated to the topic at hand) does give you the active user badge which activates a reward of 50 sb points per day, 2 sb points per like and 5 sb points per follow until the day your badge is removed (which is either due to inactivity, or unless you break any rule and get a warning point for it).
You can also post mod showcases on youtube, give 5 minutes of time and get 400 sb points, it's easy and requires relatively much less work and time than modding.
here's a whole list on how to gain sb points:-
How to get SB Points at sbenny.com
here's a whole list on user ranks and benefits:-
User Special Ranks Benefits & Requirements