This might seem like a dorky question but I'm a straight up last minute/second bidder - I NEVER bid before that and pump the price up - I don't see the point. I have noticed plenty here do though.....
Why do people bid DAYS before the auction ends and risk pumping up the finishing price???
Well, for me, I know for a fact, I have so many people looking for cards for me, and giving me cheap buys they pick up.
So if I bid, they see my name tag, and re-frain from bidding.
But it depends, sometimes I leave to the last second, especially if I think a card is shilled. Or, i don't want anyone to see what I will be bidding on.