hello...
There is some site that I've been invited to join are not listed here. Not saying that they are a scam site. As I check on similarweb some site is quite new and some have been running quite a while, but there is no good report or review about them. Is there any latest update? Or what is the best way to spot if it is a scam?
If there are no posts about the site you've been invited to join, then post their name here and wait for a review from other btt members.