This sounds to me like it would work better as something like StackExchange with DevCoin "tipping" for upvoted answers.

Honestly I don't see devtome's value.  There are too many established alternatives:  Wikipedia, various other wikis, blogsites and the like.  I don't see how devtome fills a niche.  Wouldn't it be better to try to convince the current infrastructure to receive devcoin donatoins than try to compete?