There are plenty of acronyms which are now in everyday use as a word - radar, sonar, laser and scuba are the main ones, but how many people spell out the letters ascii (askey) or refer to the computer language BASIC as basic rather than B A S I C (beginners all-purpose symbolic instruction code), COBOL (Common Business Orientated Language), or the car manufacturers FIAT (Fabricca Italiana Automobili Torino), Alfa(Anonima Lobarda Fabbrica Automobili) - the Romeo bit was added in 1918 when Nicola Romeo bought the company. NATO and NASA are other ones in daily usage. Many people believe AUDI is one, citing Auto Union Deutschland Ingolstadt, but its not - its the Latin translation of the founder's surname (August Horch) and means 'hark' as in ' to hear'.
If the letters make a pronounceable word, people will use it as a word.
Some people may get a bit het up about it, but if they're than anal they've probably got other issues that pills or counselling will help with.