wow. assuming i understand what you are saying: well, first thing that comes to mind, is how time comsuming that would be to set up. second thing is how many languages/abbreviations/slang ppl use. Suppose someone types This thing twists and someone else types that twit twinkles and another types Tom, tais toi. you could hit tab a long time to get the word you wanted...easier to just type it i think.
