I'm not sure. My guess is that its written by geeks that want to maintain a special club.
I did do a search for UNIX programs that don't suck, but nothing came up.
You may as well ask how anyone can be liberal after seeing the fall of the Soviet Union and the fall of California. Some people are just fanatics.
Ok UNIX sucks, you dont know why, you cant find any good software for UNIX/Linux and you did not even check out sourceforge?
So in otherwords you dont know what you are talking about so you picked a side, your not in the Linux geek club youre in the windows geek club..