Daniel Barlow
In his own words:

So I say "used to care", and you're wondering what changed. Simply, I realised that no matter how much time, effort, work or money is plunged into free software (in fairness, this is unlikely to be unique to Lisp) the response from this "new user" market is always going to be "Sucks. Is there even any desire on anyone's part to improve the situation?". Anything you did more than three weeks ago when they started looking at lisp is taken for granted, assumed to be provided by some capricious god in Days of Old and now just part of the natural state of things.