Personally I believe this problem began with the introduction of the AFISO level some years ago. I'm sure the CAA meant well in requiring a greater standard of 'control' at busier airfields. What they forgot was that as you introduce more levels of service you run into the problem that, 1. The power crazed or ill informed will imagine they are qualified ATCO's. Or 2. Pilots will be confused by the level of service they're getting. The constant posts on this subject show this is a recurring problem. Perhaps it's time the CAA had a look at reducing the ATC levels of service to ATCO & A.N. Other. Myself, I'd be quite happy with Air to Ground.
Spiney.