WordImperfect 6.0 was a pig. Yeah, I forgot about that one. WP 5.0 was a nice application, but yes, 6.0 meant "more is less".
On the subject of WP....I heard a story about the initial thesaurus for WP5.0. If you searched for synonyms for "man", you got results like "gentleman, human, mankind, etc." If you searched for synonyms for "woman", you got words like "dowager, prostitute, etc." (Come to think of it, I think I had this discussion with someone years ago on the UT, but I forget who it was). I believe WP got pressure (rightly so) and changed it.
My favorite applications of all time were Turbo C 1.0 (July 1987) and FoxPro 1.0 (Oct 1989). I thought I was in heaven when I used them.
Kevin