Nobody's bashing anything, the people that dislike KB have valid points and the people that DO like it also have valid points. Its called opinion baby. If I just said that it sucked and didn't say why I personally thought it sucked then perhaps it could be considered bashing.
Oh yeah, and Kill Bill is the first part of a series.. like the Matrix movies. People had no problems "bashing" Reloaded when it came out and Revolutions was still a ways off.
QT saw fit to release Volume 1 because he (and a lot of others) feel that it stands on its own. Unlike the first hour of DYRL, so your analogy is flawed. I'd liken it more to bashing Macross Plus after seeing the first episode or DVD for that matter, but still not quite.
Speaking of which, I do plan to see the second one in the hope that it manages to salvage the series for me... but if I don't like it then I hope QT dies before he can make a third. Still, that's all conditional. (Hey, it worked for Kubrick! )