Correct a seller? I have tried... not always successful. The good thing is, thru the years I have collected all the "toys" I thought I needed at that thyme. They came and went as I figured it out. Seen some totally outrageous prices for this and that, butt became focused on what I really needed and their true value.
Bottom line. Save a buyer... you or someone else, by trying to correct a seller from not knowing what he/she really has up for sale. Hopefully, they will listen.