As the other poster said, you may have been hit by pending changes protection on the pages you were hitting, which is applied to the page and not to your accoun

As the other poster said, you may have been hit by pending changes protection on the pages you were hitting, which is applied to the page and not to your account. Or maybe you were so annoying you'd got yourself added to the automated filter list? I guess that's unlikely for a random twerp but who knows.