Colonial (and formerly colonial) guests are more than welcome for, amongst other things, their insight and thought provoking alternative viewpoints. They can also be a source of entertainment when they fail to use British ENGLISH !!
On a British forum we spell colour as it is seen here.
Thats nice of you, when my wife had to attend High School having moved to live with her dad on the left side of the pond aged 17 she was threatened with Backsquadding over her refusal to mangle languages!
The only (ok the main reason) I hate google is even with UK English spelling settings the tool bar still cant spell Favourites!