Faking urgency and scarcity (and faking social proof, I guess, but IANAL and I haven't read about cases) is illegal in Germany, thanks to the law on unfair competition. The thinking is that the best product will win if you eliminate unfair practices and lying in marketing is considered an unfair practice.

The downside is that companies are supposed to enforce the law on each other, it only goes to court if they disagree. If everybody in a certain industry does this stuff, nobody has incentive to force them to comply. Consumers, clients etc do not have means to enforce it, though a handful of special associations ("Verbraucherschutzvereine", literally consumer protection associations) have been given the right to enforce it on behalf of consumers.