I think that what he means is more like the search results are like a book and every time you click show more, it "turns the page".
Anyway, a feature like the one you mention ninja-san, was, I believe, already incorporated in LW some time ago. Even if it wasn't, the point is that there probably will never for the good of the network.

I'll explain (in my own "way"):

Whenever you click on that search button, a message is sent to the Gnutella network that says that there is someone looking for that file.
Good.
That consumes bandwidth (not much but it still does).
Ok.
If you had a autorepeat function, that would, overnight, continuously send those messages to the network.
For better or for worse, you and I are not the only ones searching the network: probably another 10000 users wanna do so too at the same time.
If all those users used that autorepeat function all the time, it would flood the network with those messages=network slows down=downloads/uploads slow down.
Not good.

__________________
iMac G4 OSX 10.3.9
RAM 256MB
LW 4.10.5 Basic
ADSL anything from 3 to 8Mbps/around 1024kbps

"Raise your can of Beer on high
And seal your fate forever
Our best years have passed us by
The Golden Age Of Leather"
-Blue Öyster Cult-