A lot of users requesting features and whining if your plugin wasn't custom tailored to fit their needs. Also you can talk in Bukkit+.
I was going to say "Eternal Glory", but I like your answer better. That's why I haven't posted my personal plugins. They work for me. I'm selfish, but happy.
Is that so? Hrm. In a -small- way it's nice because you get bug reports and improvement ideas; and it nags you into making cleaner plugins. That said, I think the high traffic plugin devs are just about nagged to death.