I remember that before we had the Junior Moderators system that if anyone was a fairly new member, we would encourage them to continue participating in the forums for a while before asking to be a moderator.
There should be some sort of guideline for accepting Junior Moderators. If anyone who joins the forum can almost immediately become a Junior Moderator - the whole system just won't work. By the time the 2 month period comes around, unless they've participated very well - it's highly unlikely they'll become a full moderator.
If admin has already granted Junior Moderator status to Don't_Ask, we can't just remove his/her position straight away as it's unfair. However, future Junior Moderators should be picked accordingly.