If the identity of the aircraft is known, then I reckon it should be restored to reflect its original heritage. Purely my opinion of course, and believe me, I am the first in line to applaud any classic aircraft being brought in from the cold, housed in a warm hanger and restored to any condition, static, airworthy or otherwise!

Be interesting to see what folks think?

I quite agree. I’m very surprised Shuttleworth do this so prolifically. Currently their Gladiator, Tutor and Tiger Moth all have the incorrect serials just for the sake of portraying something colourful. I have no objections to the colour schemes chosen, but think they should keep their original serials. If people keep avoiding the correct serial, there is a fear that future generations will forget the history of that particular machine and think the serial painted on it is the correct one.
I am very pleased that the Battle of Britain Memorial Flight have got it right, for whatever markings their aircraft adopt, the correct serials have remained on their Spirtfires, Hurricanes and the Lancaster throughout. They haven’t even been tempted to put a ‘period’ serial on their Dakota which flies correctly as ZA947.