In Reply To #1
Maybe you should just freakin do it, too and stop complaining about it.
It isn't a cheating maneuver, because it isn't that easy to pull off anyway, and the speed boost is small compared to the momentum you lose instead of going straight.
Srsly, this is a pretty lame thing to complain about, and there isn't much Nintendo can do about it anyway, since the ability to drift is always there so long as you're on the road.
The rule of
Kart is almost always: if you CAN drift, then DO it.
But like others said, popping wheelies is more fun anyway, and I think the bikes kinda leave the kart driving feeling stale by comparison.