Honestly, without trying the service yet (I'll register this evening), I can't say, but if it works as expected... I'd be more then willing to pay for the service, just to help it in staying up.
Hmm, not sure if this was intended (and if it was, why), but the title on your sign-up page seems to be off, at least for me. Maybe it's by default regionalized to a different language?
Other then that, looks amazing. If there's easy import/export features, I could see this luring me away from Pinboard, at least temporarily.
Professional: Become a coder from my current (largely) non-technical status. Have a game plan of material I want to worth through over the next year to become a (hopefully well versed in the foundations) junior developer.
Personal: Meet a woman I want to spend my life with. Or a bunch of one night stands. Whichever comes first.