Sorry, fellow, but as far as I know, the term crippleware is usually used for products whose limitation doesn’t allow any reasonable usage. The number of satisfied avast! 4 Home users shows that it’s not the case here. Of course, it is limited somehow - as you hopefully understand, the paid version has to include something more than the free one. The fact that the “silent mode” is just not enough for you doesn’t mean you have to be rude.