The name wouldn't be very appropriate, then.

shmerl · on Jan 20, 2014

Well, not exactly. For example box drawing characters are included in some extended ASCII tables: https://en.wikipedia.org/wiki/Box-drawing_characters#DOS

I don't think it won't fit the name at all as an extra feature (though it only makes sense to use Unicode for that purpose).

rspeer · on Jan 20, 2014

"Extended ASCII" is not ASCII.

It's a dated phrase referring to various one-byte-per-character encodings that include ASCII as a subset. Now that UTF-8 exists and is widely used, those encodings are useless until you decode them into Unicode anyway.

shmerl · on Jan 21, 2014

So what? It's still called extended ASCII. The point is, using Unicode box drawing characters on that site would be appropriate.