Yes, although in some instances, I can sort of understand the whine. As I said, I used to play Duke Nukem 3D waaaaay back when, and found several fantastic camping spots on various maps. The problem was that in those spots I was practically impossible to dislodge, so if you came anywhere near me, you were basically dead meat.
If I refused to come down from my perch, you were pretty much screwed. In that instance, the game simply becomes not much fun, unless you're willing to try to wait me out. And when I was camping, I could be VERY patient.
Now, arguably, the fault there lies with the mappers, for not making maps where you can take a much longer route to get to the camper, rather than only having one way to take him out. But in the midst of a game, I can see where it'd get frustrating and boring really fast.
Kind of like you and your big brother, who weighs a good 20lbs more than you and is probably about half a foot taller than you playing tackle football against each other. After a while, the game just won't be fun when your brother keeps beating the snot out of you and it's pretty much a foregone conclusion.
The problem, however, is that although the maps improved over time, people's attitudes didn't, and the term "camper" came to mean "someone who isn't running around like a headless chicken hopped up on sugary cereals and speed." So whereas at one point, it was code for "Hey man, this is getting boring and I'm not having fun anymore because it's basically impossible to kill you", now it's come to mean "You don't play the game the way I want you to play, even though it's perfectly easy for me to take you out, and this angers me."