Good work alienating Linux fans

>Doesn't it seems a bit immature to condemn all of them just because they work for Microsoft ?

I have to agree here.

"Some of these companies primarily developed non-free software, but the two activities were
separate; thus, we could ignore their non-free products, and work with them on free software
projects. Then we could honestly thank them afterward for their free software contributions,
without talking about the rest of what they did." is a quote of rms I agree with.
So if the people at the ms linux-lab are actually making contributions to Free Software, it is
unfair they should be shunned or ridiculed. Or alternatively, all contributions from people
receiving their paycheck from proprietary software vendors (such as HP or IBM) should be
shunned, which obviously would be very detrimental to Free Software.

I understand how great it feels to unite under a single banner against *the enemy*, but in
truth microsoft is just *a* proprietary software vendor out of many.

>Yeah, sure everybody should quit their Microsoft jobs - the hell with feeding their family,
the mortgage, etc.
Depending on what their job is that might be a good idea. 
"Feeding their family" is almost always an appeal to emotion. In reality it is often closer to
"have a second car" or "own a detached house" or similar luxuries.