I'm just as annoyed at companies that don't bother with any kind of email confirmation click-through before sharing personal information though. I even frequently get one-click links to edit people's profiles with all their personal details.
If it includes a phone number I send them a polite text and ask them to be more careful when typing in their email address. I figure a little stranger danger fear might help motivate them to stop signing me up to be spammed.
OTOH I'm seriously considering leaving behind my many years old GMail at this point. I really only use it as an identity service for other site's logins 99% of the time. I just don't know what the options are and I don't feel like signing up for something that might not be around next year.