We shouldn't select our fitness gurus for whether they're of our tribe, we should select our fitness gurus for the effectiveness and truth of what they teach.
On that basis, do you have any reasons beyond "it's nerdy!" for recommending this website over any number of other ones, many of which are very good? If it's the gimmicky motivational approaches, I think LessWrong has that down pat - loads of us play HabitRPG and I'm pretty sure Beeminder's founders were some of our own.
Edit: For some reason my links ate themselves and the text between them so I took them out.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
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