Cross X Poison sounds like a kickass username. Granted, I'll probably resort to calling you James, but I still think it sounds cool. I suppose it would be pretty weird calling someone Cross or CXP or anything like that all the time when you have a perfectly good name. As for choosing to not ramble on with the intros, I'd say it's you're call, too. I'm sure you'll have a great time looking around this place while you're still new. In fact, maybe it's actually good to have a quick intro then just dive into things. I guess it depends on the person. I do hope that you enjoy the atmosphere here.
Exams get everyone inactive. Even me. But I think that what's done is done, and the only thing that matters is that you can do more stuff now with your spare time. Of course, life's gonna get in the way once in a while, but I believe you know better now.
I hope you make an effort to truly stick around and participate in some great discussions while you're here! Maybe you can even make a name for yourself if you stay active and contribute a lot. The crossroads of being a new member in a forum will be tough to get past, but once you take a good path and stick to it, you'll enjoy the journey no doubt. You're no stranger to forums, so I'm sure you can feel your way around here. Still, if you need any help at anything, don't be afraid to ask. I'm sure anyone you'd ask would be happy to help.
Welcome aboard, James. And see you around. :)