There are plenty already in existence. However they are also 95% garbage, and the world certainly does not need any more of that. I personally stick to what I can find on this site, StackOverflow, and a very small number of other places I have come to trust. Anything else I treat with extreme suspicion and scepticism. If you have something you think worth posting somewhere, I strongly suggest you have it competently reviewed first, and that you provide a comment facility so you can be advised of errors.