One skill I teach in my Business English classes is how to write a letter of complaint. To introduce the subject I ask students if there's anything they particularly like to complain about in Germany. Participants generally look at each other, nod their heads and answer in chorus "Everything!". At first I thought they were just joking, until I realised that making a complaint in Germany is no laughing matter.
"Open" forum? Sounds rather locked up and censored to me. I suspect most locals in the audience just want to get their face on TV and wave to family and friends at home. And here's something I really feel fired up enough to complain about too: Even if I had wanted to respond to the outrageous complaint about Brits demanding extra sausages, there's absolutely no chance anyone was going to listen to me. Most likely I'd have been chucked out with "Hausverbot".
I don't bother checking the local newspaper's headlines the following day, but it's probably something like "Über Hundert Bürger finden den Weg zur Live TV Sendung" (Over 100 citizens turn up at live TV show). Yepp, that's how exciting it gets in this outpost of Lower Bavaria. Just imagine, however, the alternative headline: "Böse Briter kriegt Talk Show Hausverbot" (Bad Brit Banned from Talk Show). That really would have made a nice and spontaneous complaints forum.