Speaking only from my own experience, the Microsoft shops I worked in were quick to regurgitate the FUD talking points that Microsoft had been spreading. This strengthened my Anti-MS resolve instead of weakening it, and the shops since then have increasingly enjoyed the benefits of that resolve, creating a positive feedback loop in the process.
I owe Microsoft a huge debt of gratitude for stoking the fire. As much as I zealot-level hate them, we're all better off because they put the debate front-and-center.