Re: Reasons NOT to upgrade?
"Oh nice, ad hominem when you haven't got a valid argument."
An Ad Hominem attack is one where an irrelevant fact regarding the person is used to attack him, not the argument. The fact of your qualification, or otherwise to make simplistic blanket statements regarding the ease of upgrading from 2003 to 2012, is very, very relevant.
"I see, you like the game of ad hominem, see above."
'troll(v) 1. Make a deliberately offensive or provocative online posting with the aim of upsetting someone or eliciting an angry response from them:'
Implying people are insane and/or drug users because they've made the perfectly reasonable decision to develop with .NET is not a particularly polite thing to do. So again, pointing out you are a troll is very relevant and in no way an ad hominem attack
"I suggested it exists, not that I recommend it, big difference really. But I forgot, even pointing something out gets you flame warriors around here."
That's a well-oiled backpedal you've got there. A few posts back:
"Server 2012 License price rises = Avoid or go Linux / *BSD / iOS"
Sounds like a recommendation to me, a blithe, casual one.