I use them to expose them.... that is why. Legit ones need promoting so they can gain footholds.. Scam ones need to be found out to clean on the crypto-sphere. Since it is the wild west.. we have to police it ourselves
Thats very kind of you that you have used it to warn others. I think you didn't lose any funds when doing this. Any new exchange should use with extra caution as long as someone verifies and reviews them as a legit exchange. It will be better to use any decentralized exchange for better security.