Sometimes it dawns on you only slowly: This person thinks only in cliches. You can move her to another cliche, but never to anything new. We are all like this because of efficiency, but some are more extreme. I wonder if it more than just the efficiency of the automatic, but includes some measure of social or intellectual insecurity as well. A cliche is an idea that has been tried out and found acceptable by many people. One is unlikely to get in much trouble for a cliche, if one stays with the set favored by one's tribe.
I used to say "Sayings become cliches for a reason," nodding to their essential accuracy. I am a person who seems to immediately ask "Wait, is that really true? Lots of people say that, but what is the evidence for it?" I have moved over the years to saying "Sometimes a cliche obscures as much as it reveals." There is one step beyond that, and I may be there already. A cliche becomes popular because of what it obscures. Whatever minor truth it might reveal is simply a cost that the liars must pay.
The liars may not be aware or thought-out, they may just be moving in the direction that is protective, like plants slowly bending toward the sun. That's not quite the same thing as being innocent. Cliches are not accidents. They are embraced because they are useful, not because they are true. It is one of the reasons I react so badly to Christian cliches. It may be that there are many who need such things, or can only respond to the oversimplified and comfortable. Still, I don't think we are all such fools as that.
When we say "God is love," aren't we often often using that truth to lie, to obscure his judgement, or to grant sanctity to romantic affection or even lust?