If you don't appreciate it, move on. Don't trash talk it. If you feel as though you need to trash talk to make yourself feel better, go right ahead--just not on the forums. Over a million, in reference to the subscribe list, enjoy using mirc. if you don't then just find another program.
In addition, if you feel as though mirc is such a "*FREEWARE* IRC client filled with crap" then make your own. 'nuff said.
