Wordperfect was used in certain industries (legal especially i think) long after it started dying everywhere else. I don't think its an exception to this rule.
There was a post maybe two weeks from Tavis Ormandy (a tweet) that made the HN front page, about how he uses WordPerfect:
Tavis Ormandy (@taviso) Tweeted:
@mkolsek Funny you should mention that, I was recently curious if there are any console word processors. I discovered there's a community who still use WordPerfect 5.1 for DOS. They kinda sold me on it, got it working in DOSEMU. https://t.co/t6j0c1G3w1