Reasons i prefer to use codes
1. they fit into the logbook columns easily, try putting Nottingham International London East Midlands Airport of Derbyshire in Leicestershire in your logbook.
2. Airfields in the Uk have become obsessed with 'rebranding ' , i don't believe codes change very often.
3. if you are a regular user of notams, flight plans, metars, tafs, GPS, etc you'll be wondering what the point of this thread is. There lots of airports around the world with the same name or similar sounding names
BTW What exactly is wrong with being 'professional'?
Capt M