Yes, there are a huge number of Q&A sites. You just listed three yourself. Others include things like coderanch, SDMB general questions, linuxquestions, etc et

Yes, there are a huge number of Q&A sites. You just listed three yourself. Others include things like coderanch, SDMB general questions, linuxquestions, etc etc But all of them have flaws: of course they do. If you think your alternative SO will work so well, then set it up. I've no doubt you'll end up with massive pedantic arguments about what "helpfulness" means before you get beyond 10 users, but perhaps I'm wrong and you'll do to SO what it did to expertsexchange. I just prefer that the existing SO doesn't get broken to the point of uselessness for the sake of experimentation with different posting criteria.