Browsing stallmansupport.org a little, I didn't find anyone who says anything like "I testify that Stallman is persuasive, a good listener and sensitive to people's concerns, good at expressing things in ways that make sense to a wide variety of listeners: in short, good at campaigning and a good candidate for a campaigning job".
It all seems to be support that has nothing to do with the qualities a campaign organisation needs in its officials.
The website's main goal is made clear in the opening paragraph. There is valid criticism and there is witch hunting. Sadly, many people chose to engage in the latter. Strong phrase, but I honestly cannot see it as something else.
Yes... in a way, that witch hunting will help Stallman get a job he's bad at by drowning out the criticism that he's bad at the job, and so he will again be ina position to help push the GPL into the margins. (Which may be where it should be, but personally speaking I'd rather see the FSF win or lose by its merits, rather than by hobbling itself with a president like Stallman.)
Campaigning for what? Sweet talk Google into using the AGPL?
There are more than enough politicians right now in the OSI and hundreds of other "open" source foundations that provide comfortable salaries for smooth directors.
There is no need for the FSF to turn into that. We need someone who says that Ubuntu contains spyware.
If that's what we need, then that someone ought to be someone who can say so in different ways to suit different audiences, who can rephrase the message to suit the background of different listeners. Who can listen, learn who he's talking to, and then choose a suitable presentation.
It all seems to be support that has nothing to do with the qualities a campaign organisation needs in its officials.