I suggest signing up for subscription services using virtual credit cards instead. There's a service called Privacy (https://privacy.com/) that provides those. You can set up limits and expiration dates. I find it safer.
I used a Privacy card to sign up for a Scribd trial to get access to one single PDF that was technically in the public domain but not accessible anywhere else online. That was almost a year ago, and they still try to charge my card for $9.99 every 5-10 days.