1. Ever since I started boxing, I saw an increase in 'l33t gangsta kids' who like to box to 'pwn'. Mind you this is not a very objective fact and absolutely a generalisation. Those are your average players you would never team up with for solo play. They just want to have a certain power they don't have when playing solo. They are not capable of writing their own macro nor to think for themselves setup wise and just copy specs from successful people without knowing what's going on. They can toss the money to box, import pretty/copy much everything and then run around spamming 1 button ganking people, celebrating how good they are. Luckily you won't encounter too many of these on db.com, but I've met a fair share in game / elsewhere on the web.

2. Recently I keybinded a spit on human / rogues macro on my actionbar for when I play solo on my ele shaman. Reason is obvious: most OP spec in the game, most OP racial in the game and alliance. And if some human rogue was to kill himself irl after me doing a /spit, I'd macro it to every ability I have.