I'd assume the vast majority of us have a single airport or city where we use airport parking (our hometown). If so, Parking threads probably fit better in the destination forums than gathered together into a central place.
Parking programs seem to usually be pretty simple, with way fewer quirks, restrictions, bonuses, promotions, and partnerships compared to airlines or hotels. That doesn't make them less useful, but it means there's less to discuss.
OP, I would suggest contacting FT to change your status to "official company rep" and then offering to help people with concierge & help desk issues (hey, why didn't my points post?).