Me and my friend and also our community decide if anyone promote fake project we will report against them on bitcointalk also in telegram.
Users have received red trust for 'knowingly' promoting scam projects or projects which requires spam to boost their ads, but that's about it. There is no
report option in the forum if it relates to scam as it is not moderated.
Promoted sites is not an endorsement, regardless of the rank of the profile wearing the signature, always do your own research before investing. Users are expected to do their research on any company they promote, but it's not always the case, and isn't foolproof either, as projects can scam individuals at any time.
If you suspect a project of scam; create an accusation thread
here.