[tiddchristopher]

If you're honestly interested in knowing how I came to that conclusion, here's my proof:

Try telling apart "be" and "ad", with no nearby words. They are identical, because you don't know where the baseline is.

[trogdoro]

True, but it's very rare that you see "be" and "ad" floating out in space by themselves. They are usually next to other words, which give them plenty of context. If they are by themselves, a dash or box can be added for context.