To be fair, you merely have to prove that you keep applying for jobs and go to interviews arranged by the agency if you couldn't find anything. Also, these reforms are relatively new (historically speaking) and were justified with economical arguments (because the economy is always a good justification if you can't think of anything).

But I have heard about postgraduates having to take on so-called "1 euro jobs" (i.e. busy work like collecting trash in parks) in order to maintain unemployment benefits while working on their theses.