Coupons, in Europe, are the shame-faced mother handing over 5p off a packet of cornflakes to feed her kids. Coupons, in Europe, are tied up in the history of rationing and whole nations not having enough to eat.
Groupon has lost its pizzazz, its currency and feels absent from the webisphere, except when it spams with unsurprising deals. Groupon needs to get back in touch with what made it a phenomenon in the first place.
Just a few years ago loved those deals so much that we bought hundreds or even dozens of them, from Groupon or one of the Groupon-alikes that leaped into the market, then we forgot that we had bought them until they expired.