... you're doing something very wrong.
Do you not suggest taking the front page of Rakudo.org at its word? After all, that summer 2011 Rakudo Star nom release has been just a few weeks away for months now.
Look, I know as well as anyone how fungible volunteer time and interest are not—but the lack of any releases (let alone usable releases) combined with the perpetual party line that it's ready if you just clap your hands and believe enough is really, really not working. If anything, it's completely counterproductive.
I gave my suggestions as to what to do a long time ago; take them or leave them. (I repeat though: making and meeting commitments is a prerequisite to the trust of your users.)