> MS has well tested security patches

How do you know this? I find it likely that they tested them for the specific use cases of the 0.1% who are actually going to receive the patches, since they are providing a specialized solution.

> And it's also just pointing out another instance of proprietary software and why it's bad, which if that is fud, well the core of linux and gnu are fud too.

You can want to use free software for some things without thinking proprietary software is bad for everything.