Check this with a statement of the admins in the middle of the thread:
Hello, On 5/27/2013 a jet flew right over my house. At about 30,000 feet, It was heading S.W. made a 180 and passed over again...very strange path?
forum.planefinder.net
I confirm that we are are based in the UK and that we are not aware of any laws in place that would prevent us displaying military assets.
Having said that we are in regular contact with UK and European authorities, as well as the FAA, and understand that they do expect us to behave responsibly.
We have therefore made the choice to apply a code of conduct which we believe delivers a responsible form of aircraft tracking.
So, the data are uploaded, but not shown on the map.