SE has a very strict notion of having the "correct answer" to each question Probably had. The secret of SE’s success was the rigorous curation as encouraged vi

SE has a very strict notion of having the "correct answer" to each question Probably had. The secret of SE’s success was the rigorous curation as encouraged via the gamification system, explicitly at the design of the site’s founders. Now there are various interpretations of their change in direction, but the quality has noticeably deteriorated for both questions and answers. There’s no sign of a credible rival right now but when one appears it will do to SE what SE did to ExpertsExchange overnight, and for the same reasons.