I get annoyed when I send a message to my doctor and it takes 3 back-and-forths to get a message from him, and not the nurse. The nurse's advice tends to be along the lines of what I would find with Google, some semi-relevant copy/pasted advice. I get the sense that they make the messaging system useless so that you have to sign up for appointments/video appointments. They know that for GP appointments, you only pay 30 bucks or so, but they get paid 10x that by your insurance company.

I try to resist this, partly because I generally don't need an appointment to answer a simple question, and partly because this is one of the causes of rising insurance premiums.