i am not entitled, however, you are still punishing real users to catch those that are not your users.

even more, your false sense of security here makes it WAY worse, we just saw how someone was able to find a service you didnt catch in almost no time. in addition to that, are you willing to block @gmail, @protonmail or those? which you can sign up with in NO time. essentially your disposable email filter doesnt help you AT ALL stop someone that has even the tiniest of motivation to sign up without giving their real email address.

Just be aware that you are choosing to do actions that are roughly equivalent to what dvd manufacturers do, with unskippable intros telling you to not be a pirate, while the pirates just get contents without this.