I agree. It seems very...I don't know...uncomfortable. The only time I ever stage door is when the crowd is VERY small and I would like to tell an actor they did a great job. Even then, if the actor seems tired when they come out, I just leave because nowadays, I feel like a lot of actors would rather come out of the stage door when they are not feeling too sociable than they would leave a different door and gain a reputation for not coming out.
I know someone who says that they (and their fellow cast members) don't wanna get smacked on by the forums if they make it a habit of not coming out and signing. Sadly, it is becoming a thing where people are expecting the actors to sign something for them in addition to performing. Irks me to no end.
"Life in theater is give and take...but you need to be ready to give more then you take..."