Then reach out to us via the contact form we'll remove the offending item once we see proper ID credentials for such request. No trolling.

Not withstanding a written agreement to the contrary, you are by default getting exclusive usage for pics to be used and shared in a non transactional way: don't sell, trade, resell, or license images, period.

You may absolutely use them at will to promote your own project, as much as you'd like! And even better karma when you credit the creators :)