[sporksmith]

(Relatively new) Tor developer here.

Yes, unfortunately some sites and such "protection" services block Tor IP addresses to mitigate abuse. While just blocking exit nodes would be sufficient (though still an overly blunt instrument), some carelessly block Tor relays as well.

In the case of Onion Services, unlike running a Tor relay or exit node, you are using Tor as a client, much the same as when you use the Tor Browser. Your IP is not on any such global list of "Tor IPs". Your ISP (or VPN, if applicable), can see that you're using Tor (unless you use a bridge), but this doesn't get you on these sort of block lists.

On a side-note, if you're thinking of running a Tor relay from home to help contribute to the Tor network, but don't want to risk getting your IP address blocked, consider running a bridge instead. https://community.torproject.org/relay/setup/bridge/