Earlier quoted context omitted.
+1. Collecting personal information such as real names, payments, phone numbers, etc. on users without their explicit consent (hitting a submit button) is absolutely unethical.
just add, "anything you type into our forms may be captured". explicit consent, one and done
How could "anything you type into our forms may be captured" be construed as a clear affirmative action by the person entering data into the form that has a submit button for submitting the data?
Also, to make it unambiguous and informed, it would at least have to be a very-very obvious statement, which would make it useless for the sneaky purposes, wouldn't it?
Edit: I know it's not only GDPR that is being discussed, but I think would follow the same definition.