I have to agree with you about people being disgusting. Even if there was no concern about COVID, wiping down equipment after using it is a basic courtesy. We recently moved into a building we love, but this is one thing (out of three) that really bothers me: seemingly no one wipes weight machines, or treadmills, after using them. I watch people hop on and off during my daily runs and not once have I seen someone come back to wipe them after finishing. My best guess is that most people think/feel that cleaning the equipment after using it is to be done by the staff. Drives me bananas, but I’m more or less resigned to this happening.