I think that X-risk reduction projects also have a problem with measurement!
However, measuring the extent to which you’ve reduced X-risk is a lot harder than measuring whether students have taken some kind of altruistic action: in the latter case, you can just ask the students (and maybe give them an incentive to reply).
Thus, if someone wants me to donate to their “EA education project”, I’m probably going to care more about direct outcome measurement than I would if I were asked to support an X-risk project, because I think good measurement is more achievable. (I’d hold the X-risk project to other standards, some of which wouldn’t apply to an education project.)
If you agree it is a serious and baseless allegation, why do you keep engaging with him? The time to stop engaging with him was several years ago. You had sufficient evidence to do so at least two years ago, and I know that because I presented you with it, e.g. when he started casually throwing around rape allegations about celebrities on facebook and tagging me in the comments, and then calling me and others nazis. Why do you and your colleagues continue to extensively collaborate with him?
To reiterate, the arguments he makes are not sincere: he only makes them because he thinks the people in question have wronged him.