I'm quite sure you're thinking about
Purgatory, who was for a long time both a regular and a prolific poster here on the forum. We also have known him here by his first name, David.
It's true that he has been longsuffering from some serious health issues, including Parkinson's as he told us once, and he has decreased the number of posts he had been making here because of the increasing limitations his ailments have imposed on him.
His profile can be accessed athttps://www.healingwell.com/community/profile.aspx?f=35&m=3922568&p=70652#gsc.tab=0
and includes an email address for him (i can only assume it's still valid), if you would like to try that.
Hopefully he is reading this now, and can reply for himself, as he has sometimes done in the past when his name has come up.