Now that’s a German word for you. And no, not just because it has Verbot on the end of it, although that certainly helps.

Zweckentfremdung means misappropriation, and in this case the Verbot has to do with using apartments for something they were not meant to be used for; for renting. Well, actually, this particular misappropriation Verbot means renting them at a high rate to those awful and dreadful tourists who come to Berlin for a limited time instead of renting them out for much, much less to people who will be paying that much, much less for a much, much longer time. Which is, uh, better.
You guessed it, we’re back here in Berlin again and trying to rent your property for the most the free market will give you is an absolute sin in these parts and must be stopped immediately. And that’s what the Berlin SPD is now trying to do with this here new-fangled, old school Socialist-type Zweckentfremdungsverbot. And you and I both know that it will be yet another roaring success. Until it backfires and gets quietly repealed a few years down the road again, that is.
Experten setzen große Hoffnungen auf das Verbot. Denn dann sind Vermietungen an Touristen und Firmen künftig nicht mehr möglich.
PS: That picture up there kills me, too. Being willing to pay 500 euros (roughly $675) to someone who finds an apartment for you is considered a complete Skandal here so that’s why “the state” needs to jump in and take those 500 euros from somebody else to pay, so-to-speak, only it will be more like 5000 euros then, which is then OK.