+1 to Ting's philosophy. Best WMF trustee ever. ;-)
It may be worth illustrating how I might draw the line between my unpaid volunteer work and taking payment for some tasks. To date I have uploaded something like 160,000+ images to Commons and never been paid anything for my time. My work has been in fits and starts and my attention wanders from one project to the next, like most unpaid volunteers. :-D
The sort of task that I would like to get some remuneration for, would be where an archive or GLAM wanted me to work closely with them to achieve their public access objectives, rather than leaving it to me just to upload the best bits in ways that I thought were most appropriate.
Spending significant time helping paid staff to run public volunteer events, process their in-house metadata, choose what to scan, video or record, decide how to release it online (either on Commons or elsewhere), what licence to choose, and help with writing code for tools like pywikipediabot or reprocessing to open media formats, seems a perfectly reasonable thing to charge for, particularly if they would like me to do this to satisfy their schedule rather than leaving it to me to stick it on my ever lengthening back-burner of interesting stuff.
Cheers, Fae