For sure. If you don’t care, you don’t care. If you do care, you might use an online form but not print it out and mail it.

Everyone here fearmongering this site is the enemy of good enough. Your credit card information is no more at risk than at a gas pump that possibly has a skimmer (and you’re not liable). Your PII has already been leaked by Equifax. Why give up even more rights by not opting out through a service that has taken reasonable precautionary measures for data protection?