I definitely think you shouldn't be able to WRT yourself, that's just really abusive.
...
How is it more abusive to WRT yourself as opposed to say, the Conjurer or Druid or Cleric or UberCharger standing right next to you? Honestly, I'd almost rather the Warblade WRT himself.
It becomes abusive if there's some sort of refresh mechanic in place, since then he can just KEEP WRTing himself.
Hmmm ... let me think this through.
Option 1: Warblade
WB moves, then uses a strike maneuver, and then w/ his swift action uses WRT on himself. He then gets an extra round, which he could use to make a full-attack and then use his
extra swift action to regain all his maneuvers.
That would actually be a bit abusive, I think. A possible houserule would be to make WRT just give you a move + standard action, leaving you w/ still the 1 swift action regardless.
Option 2: Adaptive Style
You use WRT on yourself, and then that full round action to recover all your maneuvers, including WRT. This one I would be on the fence about. It's taken one of your great abilities, WRT, and rendered it to just recovering maneuvers. Compared to what you could do w/ WRT, either on yourself or on others, that might not be so bad.
In general, though, it just looks like the ability to use WRT to refresh is the problem, so if someone agreed not to do so, then WRTing yourself isn't a balance issue. I know that would be hard to write as a hard and fast rule, but I don't sweat that too much in my actual games. Further, restricting WRT to other people doesn't really solve that problem if there are 2 initiators w/ access to it in the party (no idea how common that actually is).