Plus, you are (were) one of the dorks and your sister is one of the cool kids. The two groups have noticeably different modes of socialising.
Facebook groups just aren't the same. There's something comforting knowing it was "just some fucking guy" hosting the website for fun.
A future when all of our communities, all of our social interactions, are routed two a small amount of services hosted by great companies is one I don't look forward to.
That kind of thing - just setting something up for the hell of it, and slowly building a community, or a group of friends that way - to me it's very special.
I remember when I first encountered USENET (early 90s). Reading scores of USENET groups and enlarging my social circle, even going to far as to go to a yearly meeting one group held for several years. Then there was the World Wide Web that everything was being funneled in to. Most of the USENET crowd I was with were deriding it, saying it didn't have that community feel.
I remember when I first encountered Slashdot (late 90s). Reading score of comments on trending topics and again, enlarging my social circle. Then there was Digg and many on Slashdot were deriding that, saying it didn't have that community feel ...
To recreate this, maybe I'll try starting a video chat when random people want to ask me for advice. Tried that today when someone sent me a random message on FB asking me for advice about living in Japan, was fun.
Very true. And like some of the other commentors are pointing out, it's somewhat sad that the old, more "natural" communities built over time are becoming a dying breed.