It's comforting to finally read some words of wisdom!
You also touched on something I have always found so amusing. I don't know if you've noticed or not, but a vast majority of the people badmouthing Mono have not contributed *anything* to F/OSS (like the Boycott Novell trolls), who, when asked why they don't contribute, reply (more-or-less) "we don't have time, we're too busy badmouthing Mono".
Imagine if these people put their time and energy into something constructive instead, like contributing to Rhythmbox (since they obviously hate Banshee), GNote (since they hate Tomboy), or any other alternative to the Mono apps out there. If they put half the energy into that as opposed to writing hundreds of thousands of comments/articles per day bashing us and our project, they'd have nothing to worry about because the C alternatives would have far surpassed the Mono versions.