Just a few ideas:
Make it so hard to hit the ding, that it scares you when you actually do it.
Along with the above, ultra penalize shots that are not dinged- putts way off line, drives in the rough.
Increase the number of lipouts. Even when the ball is rolling over what looks like half of the hole, make it wiggle a little and sit at .6
Have random drives fly dead straight, even in 15 mph cross winds. (Best if over water= lost ball)
Have Alt shot matches take 3 or 4 tries to try to get a foursome seated.
Have the chat lock up after ever putt you're cc'd.
Make the chat censor so ridiculous, you can't even have a golf conversation.
Ark
PS. My bad, you have most of these covered already. Carry on.