Lets come to the other part of listing issue. If any exchange list those project ignoring bitcointalk ANN where it suspect with scam evidence than its their fault to give a asset to their traders to trade. Hopefully this kind of listing will not continue long time. That day isn't too far when their traders will leave their exchange too.
Exactly.. You did your part and don't feel guilty if people are making bad choice neglecting your warning.
Most of the new exchanges don't check projects and allow on their platform over a fee in order to get some user base. By welcoming some scam coins to be traded over their platform , they are also welcoming them to dent their reputation as well.
As for the project, I also think it is likely a scam as IMO legit projects don't have to hide their identity or plagarize other's work.