My Yahoo player profile is littered with the corpses of public leagues I treated like mock drafts. (That was jackass of me -- sorry!) And I'm currently doing a pisspoor job of monitoring two of the three leagues I'm in. I seem to get in this trap every year. I swear I'll do one league, then it becomes two, and then three or four. I simply can't seem to spread my attention over more than a league at a time. Blargh. While I haven't been a true "deadbeat" in a while, I'm definitely underperforming due to inattention in at least one or two leagues every year.
I always have time for my big-money league. Predictably, I've been hovering in the 2nd/3rd spot, while my other two teams aren't doing so hot. It's not as though I haven't checked in to see how things are going, DL players, make moves, etc. It's just that in competitive leagues, that ain't enough. Unless you hit an absolutely mammoth home run on draft day, you can't finish in the money amongst competitive owners if you're logging in on a bi-weekly basis (in daily transaction leagues).
Next year: I'm playing in one league. Well, I'm sort of stuck in a keeper league, so I guess two. Shit. I'm doing it again.