Now add to that the fact there are external costs to short term rentals (random renters through more wild party's) and banning these seems reasonable to me.
If people are causing noise disturbance to others. it's reasonable that there be legislation that covers that specific case, regardless of how long the people are staying in the apartment. Because otherwise you're penalising all short term letters for the misdeeds of a few, which is wrong.
Really? Can you back that up. Data please.
It's an anecdote, not data (but still more than you've got): In my four months being a random renter I've thrown exactly one party. It was a brunch, and two people came. Not wild at all.
I've been to a number of parties that were much "wilder." All thrown by regular tenants. The wildest was attended by the building's doorman.