Username or EmailPassword
You clearly were not running eComStation. IBM's own Warp 4.x certainly has a ghastly installation routine, one of the very worst around in fact.
Compare this to eCS 1.2 which is about as easy an installation as you could wish for.
As for bad UI design? Funny how so many other modern OS's are copying the Object-Oriented approach of the Workplace Shell...
You would use it if your business ran OS/2 software, usually in vertical applications.
Or, like me, because although I love my iMac G5 (what a beauty!) and even enjoy my WinXP laptop, nothing quite beats the WPS for elegance and user-centric power/flexibility.
As I said in a post many months ago, this is not a zombie - Up Java, PHP, MySQL, OOo, Firefox, Visualage Smalltalk, PostrgeSQL, etc, etc