New Forum Guide - Syntax and Features

Is there a certain amount of time that can pass if a user has been dropped from trust level 3 to 2 that eventually they can earn trust level 3 again? Something like 6 months or a year without any actions being taken such as silences or suspensions?

Or is it just a permanent condition that can never change?

(if the former, its at least an incentive for better behavior)
(If the latter, its more an incentive for abandoning the forum username account and just creating another, probably resulting in repeated offenses the forum admins to have to deal with)

Also I know I made a thread about this but this also seems an appropriate place to ask as well, the function of adding “tags” has a pulldown menu that seems to not serve a function that I can figure out how to use. Can this be elaborated on as I dont see it anywhere in the forums, let alone the main resource post of your’s.