Well I have been on there for 15 years, have a combined feedback over several accounts (for different interests, tend to keep them seperate) of near 3000 at 100% positive, and I have never in all my dealings heard or seen this
The auctions end at the end listing time stated and that's it in my experience.........and as I posted earlier if bidding and able to be at the end, I will decide a maximum I want to spend, then bid with 3-5 seconds to go to allow for lag, have regularly won / lost with bids showing 1 or 2 seconds left, and in 1000's of deals have never seen this "extension" thing
When I started I used to think....."Ohh....It only sold for £30.....wish I had bid more than £29!........not knowing the winner may have actually have bid £500 and been lucky
Like T.S. I have had items skyrocket at the end, not as much but once an old Lewis Leathers jacket of the missus we got for £10 at a car boot went from £18 to £280 in the last 10 seconds
.......Winner was in Japan where they like to dress up as 1960's rockers for some reason.
ATB, Ed