I dislike gamification in general, and try to avoid any service that pushes it too hard.
Once, I put in a question on a forum for my ISP and before the week was out I had received 11 emails, most of which were about me "unlocking new badges!". Including one for visiting my account preferences page, where I'd gone to try to turn off the notifications (and failed).
I understand what these organisations are trying to do, but they've just become noise.
We're a place where coders share, stay up-to-date and grow their careers.
We strive for transparency and don't collect excess data.