[plt-scheme] cutting out of Interactions window

Robby Findler wrote:

> Only if the snips have no textual representation does this change
> happen. Probably they copied either image snips or number snips. (Does
> that sound right?)

They're number snips. What they're doing, which I don't condone in the 
least, is writing their examples after they get their code running, and 
pasting the "expected" answers which they've already computed into the 
comments preceding their function. So in some sense they've shot 
themselves in the feet. Eli kindly provided wxme-to-text, which we can 
run, but I'm just trying to understand why this should happen.

There is a textual representation of the number right there in the 
Interactions window. I can see why images become snips, but not why this 
has to happen for numbers. Is there a purpose to a number snip cut out 
of the Interactions window? What would one do with it that would work, 
unlike pasting it into the Definitions window? --PR