I was on the Peaks run too and Im sorry to hear of your feelings about lunch. I'd just like to say I didn't know anyone (other than Martyn) before I got their either but had a great time nonetheless. For lunch I ended up plonking myself on Paul's table and had a hoot.
You cant be annoyed at not being introduced, no-one knew everyone and for a lot of us it was one of the first times to meet other people from the same group, next time all I can say it come up and talk to us, we're not scary (well, most of us anyway!
)
I hope this doesnt discourage you from going to another meeting.