Why do so many sellers take offense to offers on their listings?

Just like women. You don't know what you might miss out on unless you ask. I've punched way above my weight if you get my drift. Equate it to audio gear and see what you can end up with! All they can do is say no as long as you play nice.

just like women

Sometimes sellers so over value their stuff that a reasonable offer would probably be seen as lowball. I don't even both with an offer in those cases.

I guess unless you've sold for a long period of time you don't get it...but offers of 25 30 or even 40% of the sellers asking is bullsheet...it's like making an offer on a home...if it's 100k you don't offer 35k..well maybe you do but I'm guessing you get the big screw off dude comment......imo if making an offer be realistic and if the asking price is too high to start  keep looking .

I’m not gonna offer someone 35% of their ask but I will offer 30% off their ask sometimes. I think that’s an ok place to start but some of these guys act like you insulted their Mom. Not to mention if your item has been for sale for months nothi g is an insult. Half the dealers on here won’t answer you. 

Who hasn't watched "Pawn Stars"? People come in asking the moon for their stuff, and then Rick brings them back to earth. It's not uncommon for someone to ask $25K for a vehicle or some collectable, then settle for $12K after the smoke clears. I'm no cheapskate, and I'm happy to pay up for the right item, but you never know until you ask. How do you feel when you offer 10 or 20% off, and the seller snaps it up? Don't you wonder if you could have gotten it for less? An offer is just the beginning of negotiation.