Carrie, I feel ya!
When I was active, we were conditioned to stand when an alum came in the room. If you didn't, oh, you can be sure someone was going to get on you later. We might have slacked with our CCD, but she told us to stop, she was forgetting to tell us to sit
Naturally, when I became an alumni I expected similar treatment. Not that people needed to stand, per se, but friendliness, courtesy, what have you. I encountered members of the collegiate chapter on the campus where I go to graduate school, and introduced myself as an alumni. Two of them just looked at me and continued with their conversation, and the other just stared. No hello or anything. I was visably miffed (SSers, you might remember my shock!). Several months later I was introduced, during another campus function, to two members who were sweet and shocked at the actions of their fellow members. I haven't visited my collegiate chapter in a while, so there's still hope-hear that bgsugirlie?

j/k
As far as being an alum, it's great!!!! Connecting with sisters from other chapters, learning of other traditions, and having bonds with people from various generations is amazing. It's a fabulous networking tool, and just down right fun!!!!