There is a long thread on this on flyer.co.uk - apparently this pilot had a long history behaving like a right plonker in the air, so much that various ATCOs reported him to the powers to be.
No action appears to have been taken.
The CAA does do enforcement but they concentrate on obvious cases of illegal public transport, particularly where an AOC holder has complained
The list of recent (successful) prosecutions can be found on their website.
The FAA would have busted this pratt ages ago, given that he drew attention to himself so much.