Noooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo I'm not gonna even answer this question /).-). Dude just don't ask this question. Do the work yourself and look around on forums, don't ask people to do work for you.
Send an email. But making a forum about it will guarantee you NOT getting it. If you want to be a mod, you have to be able to be familiar with the workings of PiMD, not just asking everyone for help.
Doesn't matter if he does apply, the Developers have met the quota on all the Resident Advisors (Mods), and will decline his offer. So simply giving him thę information does not increase, nor decrease his chances of becoming a RA.
Making a thread asking how to become a moderator shows how unqualified you are. Seriously, if you don't know how to apply, it mean you never read the mod guide, and this means that you barely or don't know what are the qualifications for this position and what are the duties and responsibilities of a moderator. Here's a quick answer that you might get from the developers: No. (I'm not associated or affiliated to the ATA developers, I'm just anticipating their answer)