They've been experimenting for years to find a way to build something lasting off TPB's audience, usually it's been turnkey scripts - pastebin, image hosting, blog hosting etc.
I think this concept is interesting but I don't think it's going to work (for them) - if you put $5 in your account and at the end of the month it's split between a couple dozen sites then each is getting pennies for sending their audiences off to give Tippr whole dollars.
If anyone can make this work it'll be Facebook with their credits system I think.
Right place, right time? People always talk about execution on here, but sometimes timing is more important than execution. Maybe thanks to Facebook's 'like' button more people are getting used to giving rewards for content?
FTA: In fact it’s the brainchild of a group of people formerly associated with The [infamous] Pirate Bay, including Peter Sunde Kolmisoppi.