I've been playing around with puzzle geocaches for awhile, now, on a fb page dedicated to them. Someone asked for help on one that was a logic problem. HEAVEN!!!! Another poster said it sounded like Einstein's riddle, which I'd never heard of. So of course I googled it, and solved it in less than an hour. But one of the listings that came up in the google search was BrainDen. Two puzzles later, I'm hooked.
So, what are the reputation points all about?