Everybody is on about how early moving the queen is bad and all, and I don't do it myself for this reason, but often I will get an opponent that finds all the right moves and really gets me in trouble. It's hard to say 'refuted' if you get beaten. Also the online tutorials for 1.e4 d5 2. d5 Qd5. all assume that he will move the queen back after that... Saying only patzers go for checking the king... and then never showing me how to refute it! And I keep getting beaten by those 'patzers'.
If anyone knows a good video about that line that actually shows how to refute the 'patzer moves' I would be much obliged!
I'm not much of a blitz player, but it seems to me that these types of openings are more playable in blitz simply because blitz doesn't lend itself as much to positional play, planning, and so forth. Just a guess, though.