I've done my penance on a rigid mtb with 2" tyres and a non-qr seatpost collar. Those days are over
*except in winter, or when I fancy not having a bouncy front end for shiggles, or for long cross country treks, or if I need to lock the bike up anywhere, or...
Riders who can't descend with their post at normal height because of armchair saddles and beergut >>>