It doesn't matter if they have taken a long time to log in here or not, by leaving the negative feedbacks and flags against their profile, it helps newbies and guess users identify them as scammers when visit their Announcement thread after searching them up from Google.
I have create a flag:
https://bitcointalk.org/index.php?action=trust;flag=2745 Please support it.
Supported the flag, flags and tagged is a good way to alert the status of a project if they are still legit, if they are active here, they will try to resolve the issue immediately if they are not, people get a warning that they should not transact or invest in a project, it makes people to easily get the awareness of a project.