I'm gaining popularity as a StepMania stepchart author, having released 38 simfiles to date (er...www.aceofhearts.weebly.com).
I then discovered Osu about a week ago (and having played EBA and greatly enjoying it, I had to play Osu as well).
I'm happy to see so many quality beatmaps (and a lot of the anime songs I charted on SM has been done tastefully here in Osu, saving me a lot of trouble).
Keep an eye out for me - I love this game, so I might start doing Osu beatmaps in addition to StepMania stepcharts.
I guess I oughta talk more about SM, eh?
I've played plenty of SMO; I love Otaku's Dream most, though I've dabbled in other packs as well. I'm gaining skill at keyboard charts and may one day rival the likes of Xion Steel. As for my current skill level, according to what I can pass from the Otaku's Dream packs, I can pass Ichirin No Hana HHM and Motteke Sailor Fuku on Oni, but Silly-Go-Round appears impossible for the moment.