Flickr had been transitioning recurring subscription users from Digital River to Stripe for a while, but abruptly ended remaining Digital River subscriptions around November last year. It seems to me like this could likely have been why. There wasn't much transparency around why the abrupt change, but a few months of missing payments might provoke that...
Users that used PayPal through Digital River were pretty unhappy about not having the option to continue using PayPal for Flickr.
However, be careful with the terms of non-commercial usage (Enforced heavy metrics)
"You agree that the product will send usage data to validate your compliance with the license terms and anonymous feature usage statistics..."
"The information collected under Sections 4.1. and 4.2. may include but is not limited to frameworks, file templates used in the Product, actions invoked, and other interactions with the Product’s features."
However, be careful with the terms of non-commercial usage (Enforced heavy metrics)
"You agree that the product will send usage data to validate your compliance with the license terms and anonymous feature usage statistics..."
"The information collected under Sections 4.1. and 4.2. may include but is not limited to frameworks, file templates used in the Product, actions invoked, and other interactions with the Product’s features."
"What happens though if namecheap goes out of business during that?"
.COM agreement between registrars and ICANN requires registrars to regularily store all registrant contact infos in IronMountain and set ICANN as escrow, therefore allowing ICANN to contact all registrants should a registrar fold and allow them to transfer to another registrar. Another reason to keep the domain ownership informations up-to-date. [1]
There's also vanity DNS for business and enterprise plans - but AFAIU that's basically just slapping another name on cloudflare DNS - not ability to point ns records to non-cf servers?
I have had a good experience with Cloudflare's registry service over the last couple of years.
I have taken to gradually pushing my registrations out as far as they can go. I just occasionally add years onto domains I buy, so as to lock in the $9 price for that term. Seems like an excellent way to avoid inflationary price increases, or general pricing creep.