Or "nice project, I've done exactly the same 10 years before..." Or "cool project, but why haven't you tried [insert obscure software]".
The list goes on.
The list goes on.
Shouldn't be sensitive about people asking "why didn't you do this?" though, or "that reminds me of my own thing that I made back in the stone age". Those are useful and reasonable points, if not made unkindly. Reality is unkind.
We can at least agree we are talking about the latter.
The topic has been discussed at length here before. https://news.ycombinator.com/item?id=21675717