That just implies a) you are comparatively wealthy and need not make any income from your work/time, and b) your sites are simple static content publishing and require no moderation and little maintenance! Running a dynamic forum that always has hundreds online, gets many thousands of visits and generates hundreds of posts each day is a rather different animal! ;-)
Agree about (b). However many useful websites aren't forums or require active moderation, etc.
(a) is more debatable. Once you have an internet link, buidling a simple 'static' website to provide infomation really isn't either hard or costly. Even with hundreds of pages the bulk of the costs I face are for having a decent internet connection. Not for space to put pages up.
So I suspect many people could do it as an alternative to using FarceBook, etc. If people have time for 'social media' they'd have time to produce an informative website - assuming they have information to present.
Hence, yes, I can quite understand that you will be in a different situation to me because you're running an active and complex operation that really does need continual oversight, etc. But many other sites need not be like that.
It occurs to me to suggest something that perhaps you tried and abandoned. But might prompt me.
This is to add a line to the basic page structure that makes a comment to the effect that "This site exists because it gets support from the ads. If you don't see the ads because you ad-block, etc, please consider making an occasional donation."
This issue only surfaced in my mind when it got mentioned recently. I had no idea the ads existed as I never see them, even though I don't use any 'ad blocker'. So I'd not considered this question until recently. A short line on each page that isn't too intrusive would perhaps nudge at least a few people. And TBH I'm of an age where I'd end up forgetting otherwise!