About former nicknames maybe used by BoosT, i didn't have the curiosity to check if RSC gives something about that or not.
What i have to say, i played with BoosT last night, on Event server (then passworded), there were BoosT, me and .... and and and, a third player ... Sorry, right know, right here, in so hot conditions, i don't spit a name yet, not here for now. I wait for Snow and/or NL questions, if they have.
To BoosT, as a kind of TL i was, i took five minutes to explain him the great axes of the TLC. I didn't ask any questions about how he managed to join the Event server, i alreaddy had made my mind and i said to myself : "OK, there was an error commited, let's see now how it turns."
I had to say that, on first times, BoosT had some difficulties to apply the TLC spirit, acting as kamikaze sometimes, rushing alone very too much. It was on Normandy2. Then, i make him some remarks on TS vocal, trying to correct him and make him do better and better, and on the next map, one about Czech bunker Zdenda's mod, he started to act a bit better, waiting for orders, reaching the postion the TL tell him to reach, and so... So, it's what i had to say about my experience of playing with BoosT, two maps.