Grandstanding on Fleet Street’s moral high ground has not always paid off for Peter Oborne, the Daily Telegraph hack who resigned claiming his paper corruptly buried the HSBC bank scandal. In his days with The Spectator, Oborne once named and shamed ‘ill mannered’ MPs who had not penned him a thank you note for taking them out to one of his liquid lunches in Pall Mall. The following week the Speccie was inundated with letters from MPs who had taken ‘ill mannered’ Oborne out to lunch and were still waiting for a thank you note…