I would like to point out that I was a mod on Rainy's tekkit server for a few days (this was in roughly October). During this time, I was in charge of keeping the general peace because Rainy was either too busy or did not care.
While on the server, I witnessed Rainy not only grief his own players, but harass them as well (for example, he turned the region around my house into a nether area so I would be swarmed by Zombie Pigmen). One of the staff members also impersonated me and abused the players. I left roughly 3 days after joining the server because, to be quite frank, the staff sucked.
Although this was a while back, I do not believe Rainy has changed much. He has been temp-banned multiple times, muted, banished, and banned during his VC career. He agreed to a contract that he broke (more than once [I.E. Glitching out of his imprisonment and going to his enderfarm]).
On a side note, I would like to congratulate you, Rainy, for applying yourself in school and for solving your personal issues. However, I truly do not believe you are worthy of coming back to this server. You had your chance and you blew it... multiple times.
---If he is to be let back onto the server---
I suggest he start completely over. All of his things should be removed, his balance should be reduced to $200, and he should not have rights to any land.