ITD, I'm really appreciating the work that you're doing with WPMU, really! And I understand your frustrations with the builds of WPMU - interaction with developers here, it can feel a bit non-responsive at times...
But (to get all point by point cos I don't think that well in paragraphs):
-in the end (and over the last 12 months) everything has been gotton back to and sorted out, I feel like I owe a debt of gratitude to Donncha & Matt for dragging WPMU through some hard times to an excellent place.
-I think the spamming thing is wrong in the first instance and unfair in the second I appreciate the issues that went on a while back but I reckon that was dealt with honestly, openly and admirably by all concerned, I reckon we've all made some pretty big mistakes (I've certainly made far bigger than that and I still ask people to trust / love me!)
-In terms of making money, I'm also at a bit of a loss (and this could be as I'm no dev and pretty new to the OS community). I understand that Akismet is a commercial operation, and yeh it irks me a bit that it's not openly available to WPMU, but fer crissakes somethings gotta put bread on the table hasn't it? I really do hope that they do well to be honest.. we still get WP, WPMU and a host of other great stuff, and it's not like there's a shortage of WP spam blockers around... and we could always just build our own (OK, well, I probably couldn't but y'know ;).
I do think that it needs to be said that the development / community of WPMU would be improved by better communication between devs, tracking, bug fixing etc. and that it'd be nice to have a bit more communication. But at the same time I reckon it needs to be virtually shouted that this is a great great project and a wonderful group of people who have put it together and to be frank I'm just happy that it exists.
And this is a conversation which would be so much easier over a beer or two!