Mercedes, there isn't any criteria. It simply means he wants to buy at 2.80 and he's telegraphing other buyers to follow his lead which technically may increase his chances of getting filled.
We have a couple of posters that poke around with their sticks while they attempt to get a lowball bid filled.
Almost always, posters that hang around are trying to make money one way or the other way. Seldom do you see a poster here without motives.
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