I don't really care about spectators as long as they
are quiet. There is nothing more annoying than playing and people smalltalk their mouths off.
HINT HINT HINT, SPECTATORS HAVE TEAMCHAT, TOO!
And they really should use it when saying something most likely not interesting to any non-spec. I turn teamchat-only on in severe cases, but some actually playing guys may say something on commonchat I don't get then ... it's a drag.
But aside from that, I have no trouble with specs.