A handler
now? The linked article is classic RMS: pedantic, relentless, and reasoning so nuanced to the point of being indecipherable if not imperceptible to all but the few who have spent countless hours wrestling with RMS' ideas.
If you assume RMS is smarter than you, or at least more analytically rigorous (like a computer)[1], then you'd be hard pressed to find anything RMS has said which isn't consistent with the entire body of his thinking--including his opinions on certain age-related matters and his recognition of and apology for the insensitive manner in which he expressed them. Which isn't to say you would consequentially agree with him, just that his reasoning is about as impeccable as is possible for such insoluble human social issues. You almost always end up having to wrestle with and reject his premises, which can be difficult because his premises are often agreeable on their face. But by doing so you develop and strengthen your own views. RMS is like Socrates, a pacemaker in a race, or the Energizer Bunny--absolutely exhausting, but if you're disengaging then more likely than not you're the one falling behind, not him. Which is fine--the biggest premise of all is that any of this matters, and if you have your doubts it's impossible to match his stamina; just don't pretend like he's the one slowing down or tripping up.
[1] I want to say that one should simply apply the HN rule of assuming the best version of the argument. But RMS almost always puts forth the best version of the argument, at least from a logical perspective, though certainly not necessarily a rhetorical perspective. Thus with RMS the better habit is assuming he's smarter than you, regardless of whether that's true or not, as it forces you to identify and trace the elements and threads of his reasoning, which are invariably present in plain sight.