My 10th Anniversary - How very very sad.

This weekend I'm celebrating my 10th anniversary of joining this site
So I'm going to award a years premium membership to the first FREEMIUM member who can answer the following question.
I've been a member of two clans, name the first one.
This isn't easy at all, so you'll need to do some extensive digging about, good luck. You can guess as many times as you want but at least two other members must post a guess between attempts.
K
ps: This isn't open to members of the clan in question.
pps: I will not comment on answers until someone gets it.

So I'm going to award a years premium membership to the first FREEMIUM member who can answer the following question.
I've been a member of two clans, name the first one.
This isn't easy at all, so you'll need to do some extensive digging about, good luck. You can guess as many times as you want but at least two other members must post a guess between attempts.
K
ps: This isn't open to members of the clan in question.
pps: I will not comment on answers until someone gets it.