Up to you how you want to view the offers.
Personally we would not ignore!
This person is actually looking at your item so that is a good thing.
If the offer is reasonable then perhaps you might accept and adjust the listing for them.
If the offer is ridiculous then send a message and let them know what lowest $'s you would accept.
If they accept- great, if they don't - great. No skin off your nose.
But at least you have some activity and people contacting you.
Remember their offer could be just a way to flush out what your lowest price is. And who knows they may accept your price.
It can be confronting when unsolicited offers arrive, (and sometimes ROFL time), but we just view it as someone trying to find out what we will accept. So we view it as a positive situation and start the conversation. But never ignore, or be rude back.
Your choice, Good Luck.
