DaveC means that saying "it is not silly" is a very weak reply that doesn't have any counter argument to the other people saying that your first comment is silly.
You said it was silly, but you haven't really argumented your belief, in contrast to other participants in this thread who did give valid arguments.
Anyway, if you think removing IE from your system is not silly, that is fine, just know that a lot of people disagree with this.
