What's the point of having these here? With so many legit exchanges in the world, why would the unofficial exchanges exist?
Still no clue what you are talking about.
Can't you provide some links or something?
I think he is asking about
Currency exchange section of bitcointalk,
OP this is not an exchange,this is olace where you can find buyers and sellers on your own and convert your crypto currencies on your desired format,but the chance of getting scammed while trading personally is high so you need to use escrows.