people dont use the "Like" to mean i like that. people have "Like" 'd people dying or getting injured.

commenting on something or "Like"-ing it is not the same as endorsing the product, idea, object, etc.

that being said no one is forced to use facebook, so as long as they are clear about what they do (which they arent) then I think they should be able to use "Likes" in this way. Maybe the best solution is to change "Like" to "Acknowledge"

The punishment is disproportionate, but he (as part of a group) did damage to something, and should get some penalty for doing so.

I mean no weekend trips (they probably limit the time/mileage/etc), but need to go shopping or head to the car dealership? perfect!