[plt-scheme] Problem fetching a URL

[Danny Yoo]

> It looks like current-alist-separator-mode is exactly what I need. 
> I'll try it out later.

Just out of curiosity, why is current-alist-separator-mode using 
semicolons by default rather than ampersands?  I understand that 
flexibility is nice, but this is the fifth time I've seen people hit this 
as a roadblock; shouldn't the default be what's most commonly used?

Best of wishes!