Don't most ISPs hand out IPs that are only nominally dynamic?

My IP is dynamic, but in practice only changes ~once/year. Even if I go to my router and release the WAN IP and reboot, when it comes back up, it'll have the same WAN IP. But then that once/year, my Internet randomly goes down and I have to reboot my router and I end up with a new WAN IP.

When that happens, I just go and manually update the IP for a hostname I use. If I wanted to get fancy, I could automate all this, but meh. CBF to spend the time automating something that only takes me 30 seconds to do once/year.

> I assume that ISPs generally don't want people hosting servers on residential connections.

They likely don't care unless you're saturating your upload consistently. Also, some ISPs like Comcast/XFinity are known for having extremely asymmetrical connections. At least, they used to. I'm fairly certain I've heard of some people having 1 gbps down, but only like 16 mbps up.