I think it's worthwhile (important, even) to sort things out so that we know which items are confirmed and which are not. There are some that I am convinced are legit, but cannot prove (or haven't seen them confirmed). That doesn't mean we bury the stuff that isn't confirmed, just that we mark it in some way. Let people see what is what and make up their own minds. When you go through all of the evidence, I think people will find many of the unconfirmed items believable.
Remember, someone does not have to believe it all 100%. There are likely to be many people who will see all of the evidence, sort it out, and decide that they cannot support him with their money... even if they don't believe the worst stuff. Just knowing that it might be true could be enough to get them to support someone else, instead. I think people are starting to understand that they don't owe him a living, and that other exJWs are able to produce content with little or no monetary support. If the work is that important, he can get it done without tens of thousands of Euro in annual donations.
A note to those potential supporters: don't be drawn in by any arguments outside of that. The plain question is, do you feel comfortable sending him money? Any attempt to distract or deflect from this should be seen as another reason to answer "no."