This is true. I was 18 when I joined and was still in high-school
But yeah, Cronk, LM, and Indi were under 18 when they joined as mods iirc.
So you don't have to be an adult. Though while there aren't any age restrictions per-say, I think anyone over 15 probably has a better chance (maybe over 16). Similar to how that was TTV's minimum age for new cast members back when they still had casting calls.
I had a spotless record, in that I had no record at all.
The way I became a mod was through TTV's casting call back in June 2014. I had impressed them in my interview and was asked to become a mod later that year. Even though I didn't have an account on the mb at that point.
I wouldn't rely on waiting for the next casting call tho (if there even is one)
Early on I know a few of the previous mods had 'played as mods' before they became mods. 'Playing Mod' is against the rules since people doing it don't have any kind of authority- and I don't encourage anyone to do so.
The point is you don't necessarily need a spotless record- however if you continue to break rules without trying to stop, (i.e. by not reading the rules and adhering to mod messages) then your chances at modship are slim to none.
As Bio said, that's pretty much it.
I think trust is the most important thing to establish between TTV and the current roster of mods. Flagging posts and having a large amount of them be approved also helps considerably. Since that's the closest thing to what moderating is like. Though I'd say trust supersedes it.