I just googled for the thread I remember reading, and it is namebright that is apparently linked to them:
https://www.scottphillips.com/post/2010/buying_a_domain_from...
This is the thread where someone mentions they /had/ their domain with namecheap, which is why I confused them: https://www.namepros.com/threads/held-hostage-by-huge-domain...
Personally I've never used either - I'm in the UK so it is different companies (oneandone are who I've used, who have been fine)