the only person who cleans the machines after use.
Cleaning before use makes sense but only if you are not wearing gloves or intend to lick it. After use - no reason since the next guy doesn't know if you did or not. If he doesn't give a damn, you wasted your time and effort. If he does, he will clean it himself.
Cleaning it for him is equivalent to wearing those idiotic masks to protect the unvaccinated.