And as for me as a Konachan user in general... It began at some point with a search for anime wallpapers, maybe around 2010? But it was only in December 2012 that I started lurking frequently enough (and paying enough attention to anything on the site besides images, like comments and forum posts) to call myself some sort of Konaite. After that, I created my account on Feb 23 2013 but continued lurking until... Some time in August 2013, I think.