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.
You made a good point, but it could also mean an untrusted or new exchanges. As we can see above, he dropped in his comment, some of the few trusted exchanges that majority is using. I guess the reason why there are these new exchanges today, because almost all of the trusted exchanges has applied the KYC verification , which is a conflict of interest and purpose for cryptocurrency. These new exchanges offers no KYC verification in order for them to take an edge to those that existed already.