EDIT: Deleted before I get even more downvotes.
Every time someone utters the word "ascii", they just mean text. Saying “I'm using ASCII” doesn't mean anything anymore, because nobody uses EBCDIC anymore – you are, no matter what, effectively using a superset of ASCII, by default UTF-8. The real question is which one.
I get what you're saying, but I have seen bugs at work caused by distributed systems sending text in ASCII or UTF8 to an IBM z/OS mainframe with EBCDIC.