Hi guys, just a quick heads up.
I've noticed that this sad loser is pestering your servers as well (done some searches to see where else he plays on). Just a FYI, he's connecting through proxies, mostly anonymous ones, sometimes transparent ones and that's why he is able to bypass the bans so easily. Doesn't mean you should stop banning him, but be aware that those bans don't keep him away. If your server is on a Linux box, you can ban proxies with IPTables, although not a perfect solution since you can't really have on-demand proxylist check, but at least you can cover most of them.
Because I haven't played with B3 I'm not sure if it has required features but if it has, you could check the client headers on B3 and block if they return proxy info. However, not all proxies advertise the fact so that isn't perfect solution either. On the other hand, the guy in question doesn't seem to be the brightest on the block since he keeps using variations of his name and keeps playing with same style every time making him easy to recognise.
He has lately been changing his nick bit more, especially using tag [SAMCRO] (e.g. yesterday he was using [SAMCRO]alphonse$$) and today he was using nick DArkPhilou, so keep eye on players using [SAMCRO] tag or "phil" somewhere in their nick. Also if you keep eye on XLRStats list, it'll show if someone is using anonymous proxy to connect, if you see that, it's 99.99999% certain that your little cheater friend is back.