I think allowing the definition of open source to be muddled would be a big mistake, especially now that some entities are trying to whittle away users' rights while continuing to benefit from the positive vibes of open source. The OSDI/DFSG/FSF definition is a clear, simple line in the sand that has served the movement very well; there's no reason to change it. Yes some entities actively participate in their community and others do the bare minimum, but it's always going to be possible to be more or less communitarian.