Isn't it funny how most software patents can't be protected by trade secrets? How many patents were infringed (1) by mistake, or (2) by somebody trying to emul

Isn't it funny how most software patents can't be protected by trade secrets? How many patents were infringed (1) by mistake, or (2) by somebody trying to emulate some behavior or (3) by somebody reading a patent description? Personaly I've never seen (3) happening. It may sometimes happen when it comes to video codecs or AI, but funny how those domains are strongly linked to math ;)