I agree with you sir. Their mission and vision which is to be the world's leading cryptocurrency in exchange and trading platforms are not new here in crypto world. Even before, so many platforms like this are already functioning now in the market. So I think it would be very hard for the DECOIN team to convinced investors unless if they had already good plans and strategies, then my thoughts will not be matter now.
The word " first wold ... " lost its meaning completely, if you open Announcements section, you notice that every single ANN Thread starts with this word. Back to the main point, Those type of exchange that share profit with it users called Profit Sharing Exchange and we already have Kucoin , cross, however, the number is still small comparing to other type of exchanges, So I don't mine having more of them.
You are right, this is the reason why many of investors now don't mind having this many projects with same features, their only goal is the possibility of gaining a lot of profit once they made an investment here.