At one point we dedicated a forum to them (my site is for folks with neurological disorders and other health issues of which most are terminal

) but that got too complicated.
I have a inkling of an idea about creating a special page to honor those that have passed away but no concrete layouts.
One other idea we are contemplating is a special forum that would be a memorial to those that have passed. Our admin team (or someone close to the user) would write up a bio and start a new thread for that user. Personally I like this option the most, but since it's up to our members that doesn't much matter