I literally pulled A12 for the first time today, told them I was new, and they waited while typing out a brief but informative overview, enough that I got in my gate and didn't stack poorly and everything. In my experience, while there are jerks who don't like helping new folks in this game, there are far more folks who just want everyone to have fun and get through things. They'd rather teach you the strat than have to pick up your slack because you're tanking the floor.