Everyone is welcome to apply to become a moderator on SuperCheats. As long as the link to 'Apply to be a moderator' is on the forum you are looking at you are eligible to apply... (It appears on the top left).
Generally you need at least 30 posts in that forum before the link appears and there must be a vacancy as well.
We do clear out our moderator positions regularly and usually remove moderators that post less than about 5 times in 30 days in the forums that they moderate... Why? To give someone else a chance...