I just recently started existing in Sandersonland when my girlfriend (a longtime Sanderfan) finally coerced me into reading Mistborn by giving it to me for my birthday (which, of course, meant I HAD to read it). I'd never really thought of myself as a fantasy fan, but I couldn't put that damnation book down, and two months later I've read the first four books in that series, am halfway through Warbreaker, and am dead-set on reading every single Brandon Sanderson book/novella/everything by the end of the year.
I also think I'm finally starting to understand the concept of fandom.
Somewhat relatedly, I never cry or even really tear up from books or movies or anything other than real life -- it's not that I have anything against it; I've just never been moved that much. And then I read the Well of Ascension, and I actually cried a little bit at the end
and then the Hero of Ages happened and I just couldn't hold it back.
So yeah, that's where I'm at right now. I probably won't be poking around the fora too much until I finish everything, lest I accidentally manage to spoil myself, but I'm excited that there's a community of people this obsessed, and I look forward to joining it.