mucksterme
Oh Wise One
A three star trade just says "I want to be in front" to me, so I ignore them until after I clear the 2 star trades, no matter how good they are.
Unfortunately, I think it is often (at least with sentient goods) more along the lines of: "I have discovered nobody will pick up my two star trades for elven tree gum, so I am offering a 110% trade".
It is interesting
two posts in a row saying why they think three star trades exist
no one said
"Some people offer three star trades because they want to give their FS mates and neighbors a deal on boosted goods"
or even
"they might do it because they need the goods urgently so they make the trade more attractive"
This says more about you than the people whose minds you are reading