It'd be great if we could click a 'Thanks!' button on posts and the people which said thanks was displayed below (e.g. AVForums).
I was just reading one of Cookie's posts and would of loved to discreetly thanked him for it, which brought me to this suggestion.
It's a long shot - I realise with WDZ wanting to retire from msghelp there's probably nobody able to developer this big-ish feature even if it was wanted by many, but nevertheless I thought I'd voice my opinion anyway.