No. Please, please, no!
If someone gives a clear answer, supports it with references to authoritative sources, provides easy-to-follow examples, and patiently answers follow-up questions... Then that's enough, even if it's the only answer they've ever provided on the site, and googling their name turns up nothing but a lone blog post from 2001... about cats.
If someone gives a brief, unclear answer, with no supporting references, missing or unhelpful examples, and steadfastly ignores follow-up questions... Then it's not enough, even if they have a high reputation number on SO, are heavily awarded by various industry organizations, have written several books on the topic, and currently hold the top spot on Google for the best programmer ever.
Judge people by their answers. Or better yet, don't. Just judge the answers, ignore the people. SO is no place to be resting on your laurels... We're here to answer questions, not fawn over celebrities.