Guys, do you have any suggestion about how one exchange can gain trust into traders. It will be appreciated!
And do you know any crypto communities for Ethereum, exchanges, blockchain where I can talk more about our decentralized platform
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https://weidex.market/ 
To gain trust the best thing you can do is to be transparent, people are aware of the scams going around the market and hence the market is in a recovery phase it is certain that people will come up with new ideas to make easy money and scam innocent users of their hard earned money.
The market has seen enough scams and hence it is not that easy to built trust unless you are transparent about the developers and the team behind it.