(Not that it's relevant, but I rather doubt that Philip G. ever
recommended ASCII7 for the Oracle character set, even in 1999.)
The fact is that at least through Oracle 8.1.7.x, ASCII7 is the
default. Oracle also stupidly hides this in their installer,
so unless you specifically look for it when installing Oracle, you
will almost certainly end up with with an ASCI7 rather than UTF8
database - bad. My old outdated
Oracle install notes
have some more info on that UTF8 character set stuff.