Also: entitled users who ask if x can be done, and after a comprehensive answer which took a lot of time and thought say "can you make a demo and post the code. thanks"
If they want the patch or improvement, they should pay for it.
Log4J CVE might have been the perfect use case for asking for 50K-1M EURO for the maintainers to patch the bug, to any corporate clients this is a drop in the bucket.