Fortunately, English has what I term a large "hysteresis envelope":- it remains more or less recognisable even when severely mis-spelled and otherwise mangled. There have been postings on Pprune about this delightful peculiarity. It is a characteristic which ensures the survival of the language in some recognisable form, quite probably until man becomes extinct and the sun goes red dwarf and reduces the planet to a carbonised cinder. (After that, all bets are off!)
Spell-checkers are all very well, but the occasionally original (and even unique) use of the language which crops up from time to time adds to the appeal of Pprune. Long may it be so!