Depends. I went autograph-hunting for my sister once, and I saw the show the actor was in on a Monday, but it was raining, so I went back on the Thursday for the stage door. That's the closest I personally have come to stage dooring without seeing.
I think... if you're stage dooring without seeing the show, it's kinda rude, but understandable if you have the best intentions. If you're a massive fan of someone and want to thank them for their work but can't manage to squeeze the play into your schedule, then why not. If you're doing it because you can't be bothered to see the play, then that's less understandable. And if you're an autograph dealer, you can bite my steely buttocks. ^_^ If you saw the show on a Monday but stage doored on the Thursday, then it doesn't count, 'cos you did see the show, and you're not just going "well, I saw 'Rent' once in 1998, so I'm totally fine in stage dooring it every few weeks just because!". XD
tl;dr - it's a sliding scale of "a bit rude" to "massively offensive". ^_^
Updated On: 7/1/08 at 10:59 AM