That's not a good start. At least you archived their thread fast because the team part is already deleted. Now, what will be their reasoning here why they are using stock photos? The "dev" didn't know that there are a lot of users here that can easily busted a fake project. Let's wait what's gonna be their response on this one. Are they going to move forward or disappear into thin air?
-snip
It is a common action here in the forum to accused project as scam if there is a lapses like plagiarism in the project resources like copying Github of PIVX and also the comment above about the picture of the team. You should indicate that your project is not yet finalize so that it will be understable if you have some error. I understand that you are using other project code on github to make it as pattern since it is open source and that is the point of being an open source, to make additional input for improvement.
The right way to deal this kind of situation is explain clearly your side about the mistakes and immediately correct. No one is trying to destroy your effort. There is some major lapses in your project resources that reasonable for accusing your project.