I've noticed on Upwork that there are some job listing sporting an egregiously low offer, which, as far as I know, is inconceivable that could actually generate the desired outcome.
Often, those offers are also poorly written, so much that I think it is very likely that who wrote those has absolutely zero idea about what he really wants and how much time and money do something cost.
Are these offers known to be almost always a waste of time, or does it often happen that who posted them realises this after you explain it, and the hiring process goes through?
The order of magnitude is someone offering $100 for something I'd ask them $900.
This does NOT include the case where the poster specifically states that "the price is just a placeholder" (obviously).