Personally I liked being able to give some beer on comments since vote values are so low I have been reserving my votes for post.

I think a combo of A&B would be nice:

A. Keep the ! BEER function running for the fun but limit the amount of BEER which is given with each call. F.e. to 0.01 BEER or 0.1 BEER
B. Keep the ! BEER function running for the fun but make the limit to give some ! BEER a bit more high (f.e. from 6 to 20 or even 33...)

M. Keep ! BEER with a value of say 0.05 BEER, make the limit be something like one call per case of beer, (24 Beers would allow you one, 48 would be 2), on up.