If its going to be a centralized exchange then it's better to have one that charges a small fee for its service because they will be obliged to do some house keeping job on the exchange like taking down scam projects etc
While we expect decentralized exchanges not not require such upfront fees as they are run by smart contracts etc
If it is not shit exchange, it does not matter. More exchange is not considered negative by anyone, on the contrary with more choice it will be easy to find the appropriate one. On the other hand, listing in one of the top 10(except hitbit) keeps you alive.
"except hitbit" do you mean except HitBtc?
This is one awful s exchange, I doubt it that they will ever change for the better