Those are both staff roles (ret = rollback, trapper = content mod), so don't think anyone's gonna have them as a flair. That's why Sci took Doctor, since someone might be confused and think he's a Content Mod if he had the Trapper flair.
Revivals do not count on threads which are on a user's message wall, though users should be considerate. Remember, some people have email notifications on. Is it worth posting what you are posting and do you think the person will be okay with it?
If a user has revived a thread, be helpful. If you're going to point out that a thread has been revived, then you should also guide the users to the forum rules. The wiki's forum along with the rules can be found under the "COMMUNITY" tab. Alternatively, you may type the following as a response which will automatically guide the user:
Who knows. Maybe we'll start a new thread, with a random troll to instigate an incident on my message wall. After all, this is the only thread that is constantly revived, and consistently so for...over an year at this point.
This is the one thread that I can find familiarity with nowadays, given that I rarely frequent the FANDOM wiki. Seeing notifications on this thread reassures me that I'm not forgotten, at the very least.