Looks like you joined about 5 1/2 years ago. I'm surprised you think you're part of Group #2.
Before what date do you think people can be group #1? Or are you ascribing the group number to contributions rather than date of joining?
Before what date do you think people can be group #1? Or are you ascribing the group number to contributions rather than date of joining?
So after a few months of lurking, I registered here, and now it's my daily[1] go-to site.
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[1] Hourly. :)