Check out this listing.
Why in the world does somebody place over 100 bids about 1 bid increment apart very early in an auction(first bidder as a matter of fact)?!? Boredom? Too much time on their hands? I've heard of "nibbling", but against yourself?!? Or is there some benefit derived on ebay for lots of bidding activity, whether successful or not?
This isn't the only instance of this activity I've observed, but it is one of the most extreme cases I've seen!