Originally Posted by
AllieKat
The whole 'refusing to run a PIN preferring card' thing would settle down after a bit anyway, just as there were isolated reports of shops that were chip-enabled early on refusing chip cards. Other chip and signature countries like Hong Kong don't refuse PIN cards. They sigh, but they don't refuse them. Possibly drag you up to enter your PIN (happened to me once), but they accept them.
HK also doesn't have the tipping culture that the US does. A few instances of servers getting stiffed due to the terminal prohibiting tip adjust (not saying that this is happening, but per MC rules it is possible) would probably either get restaurants to disable PIN entirely or simply stop accepting such cards. Of course, that becomes less viable the more of those cards that exist.
Alternatively I suppose they could just rerun the transaction and let customers enter the tip on the terminal but I haven't really seen that happening unless it's something already customer-facing.