Personal opinion, but since TL3 have a decent amount of influence, it shouldn’t be that easy to get to that level. I wouldn’t want anyone that I didn’t trust to gain the ability to rename/move topics OR have more powerful flagging rights if I didn’t trust them.
We’ve kept our levels at the higher level, and have even taken the step to lock certain problematic members at TL2 just because we don’t want them to cause trouble if they decide to get into one of their numpty moods.