Tipping in restaurants

[WaldoMcFroog]

Would you leave a tip for good service if you knew that it might never be seen by your waiter/waitress but might be skimmed off by the restaurant..?

http://www.independent.co.uk/news/uk/this-brit ain/tipping--the-unpalatable-truth-867545.html

[rov1200]

Sorry wrong question