I'm fortunate in my career - while more money is always nice, I'm at the point now where it would have to be an awful lot to persuade me to take more time away from my (very young) family. I suspect all a patreon would accomplish would be my still producing slowly on the site but now feeling guilty about it :-).
Maintaining the site is in many ways its own reward - it gives me a great deal of joy to see how much it's used now. Improvements are actually a reasonably high priority for me, it's just that toddlers have a way of creating their own special priority levels :-).
All that said, I very much appreciate the sentiment!
I wish you and the flexboxfroggy guy has a patreon account so I could pay y'all to make games/exercises that improved my mental model of things.