Honestly, duct tape gets brittle in the sun after a while. Might be worth trying that clear gorilla tape instead, it seems to hold up better to weather.

Tape up that hole and see if it holds. My first greenhouse looked like a science project gone wrong by the end, patched with more duct tape than plastic. If the frame is still solid, a new cover is way cheaper than a whole new setup.

Remember my old apartment had a guy who would practice bagpipes at 3am. Started keeping a log just like you, but for weird smells instead of noise. It got so detailed the landlord thought I was nuts until the sewer line finally burst under his unit. Your count is brutal proof, man. That kind of paper trail is the only thing that ever gets lazy city workers to lift a finger.