Why would you use Adblock if you pay for premium?

There are other websites on the internet, and I don't want to/didn't consider toggling off ghostery, noscript, ublock origin, etc per domain that I choose to pay for.

Because Adblock doesn't just block ads, it also blocks invasive trackers that I consider malware.

Paying to remove Ads means I don't want ads, it doesn't mean I consent to all of the other invasive tracking they do.