Microsoft’s business strategy for years was using the end-users as the beta-testers, rolling out “Service Packs” back in the days before broadband internet made it possible for them to just deluge us with daily patches and hotfixes. Even to this day, they keep to the same strategy of rolling out a bug-ridden dog of an OS, then a year or two later rolling out a “new” OS that is basically the former with all the major patches and fixes rolled in.
See also: Win 95/98, Win ME/2K, Win Vista/7, Win 8/10. The only exception is XP, and that’s because it was basically a Microsoft making a dedicated Home OS rather than people relying upon the 2K which was originally intended for network users.