Consistently, over years, new people who come here want to know one thing (only) although they don't have enough exposure to what all's involved in it to define it this specifically : "Is this stone I found an Indian tool ?"
"Artifact or not ?" is not the question they're asking.
Insisting on imposing that distinction on them as if it were the only aspect of their finds that matters is not a real accomodating strategy just to keep from having to say, "Nobody knows, really."
They don't come to get with some program. They come looking for answers to what matters to them. So oftentimes the answer they get is not to the question they ask.