1) Alright, fair enough. I main DDD in vBrawl, so I can definitely understand this strategy.
2) DDD's attack speed doesn't seem conducive to keeping the opponent out, though. I understand air camping may help a bit, but it also seems to me that chars like the spacees, Sheik, Lucario, etc could really hurt DDD once they get under him.
3) You can't dodge the leg during upB, which you'll be using if you're out of jumps, which the opponent will cause by pressuring your recovery. I'm not talking about lazy sex kicks done a million feet in the air. I'm talking about sex kicks done right above the ledge or even offstage to directly intercept the path you have to take to recover.
Granted, I have DDD in Mid Tier with all the other Mid Tier chars. I'm not like the others who are grouping him in a whole different tier at the bottom with G&W, Ness, ROB, and whoever else people seem to think are really bad for some reason.