"Beard matted into a bizarre pizza crust flapping off the end of his chin... He waddled... RMS intoned gravely... he turned about on a heel and marched out... with a grad student in tow."
If that's not ad hominem, I'm not sure what is, you scruffy-looking nerf herder. But um, what's even more bizarre is that you're saying it's not ad hominem and then you're taking RMS' side.
P.S. The AGPLv3 is kind of nice; it's the GPLv3 extended to cover web app usage. I asked the FSF about a Lesser AGPLv3 but they said they needed lawyers a.k.a. money.
Of course, the implication isn't stated explicitly. Say what you will about that.