For my personally, I'm hosting an instance so that I can play with it, but also so that I can test new functionality, and help fix issues.
So I think if you are concerned about being a burden, then actively use your instance for the betterment of lemmy!
Bit clickbait. tldr: ffmpeg used it in their github actions, which pulls from gmp. They also use 100 builds to do simultaneous testing. Forks also run the actions, and it all pounds the gmp servers.