Interesting idea Cam - the reason for taking the Donate button down is simply to avoid over collecting. I do carry forward any unused balance to the following year and have never thought about being paid for my time. It doesn't amount to much when things are working as they should!
I'm happy to do what I do in the same way that our expert contributors freely share their Laverda knowledge here.
A few folk in previous years have been emphatic that part of their donation is for a beer and pizza as well as a contribution to the operating costs. I confess to taking them up on their instruction!