Menaces who insist on driving in the middle lane of a motorway when there is room to return to lane one are effectively reducing it to a two-lane dual carriageway.
They cause GOOD drivers to move across from lane one to lane three to overtake and then all the way back again,or tempt others to undertake - perhaps to make a point.
If motorway drving was part of the driving test, middle lane hoggers would fail what is, after all, an elementary test of driving.
Why can't people strive to improve their driving instead of adopting bad and infuriating habits. Read the police publication Roadcraft, or take a more advanced driving course, for example.