Recently the phrase “there is no free lunch” has been grating on me for some reason. It adds nothing to the conversation and, to me at least, always appears to

Recently the phrase “there is no free lunch” has been grating on me for some reason. It adds nothing to the conversation and, to me at least, always appears to be used as either a “this common phrase is proof that I’m right” or “you are dumb for having thought you found something.” It just never adds anything helpful. A: “I think I found a way to do X better or more efficiently!” B: “nope. There is no free lunch.” A: “oh ok. Thank you for showing me the error of my ways.”