Started lurking shortly after the 2008 election (at an age of...11
), and registered in December of '09 (at 12), technically breaking Forum rules by my presence for the next several months. But I continued to mainly lurk, posting just occasionally, until I became a more regular member during the 2012 Republican primaries. I'm still (17) one of the younger posters here, though by time spent here -- 5 registered years, lurking for longer -- I'm definitely in the top third.
Weird to think that I've been on here for almost 4 years, and I haven't matured in the slightest.
Thankfully, I don't think this is true for me.