Clearly this threat is fast picking up downhill speed. Everyone is entitled to their opinion of whether this or any software should be charged for. There is little point in trying to define the meanings of job and work. Obviously, at some point in time Khaled made the decision that programming mIRC is how he would make his living. Personally i think its wonderful when anyone can earn the money for life's daily needs by doing something they love to do. Just because you enjoy doing the work you do to keep a roof over your head, that doesnt negate its value and mean it should be given away, regardless of how many hours per day is spent on that work. The creator of any software has the right to do as they wish with it. If there is something ppl dont like about it (like the about screen), then they have to decide if it bothers them enough to stop using it. The fact is that mIRC has a price and the "about" window is there to remind users of that. Many things in life have a price, and the providers of those things will remind you (at the very least) if you dont pay them.
Whether people use mIRC is a matter of choice. Whether people pay for mIRC is a matter of right vs wrong and personal values.