Listen Up‼

I’ve heard folks on mailing lists argue (only partially in jest) that multiple punctuation points, and in particular multiple exclamation points, are a sure sign of a brain damage.

Recently I’ve been wondering what to make of folks who use the interrobang () and other Unicode characters that combine multiple pieces of punctuation into a single glyph (like , , and of course ). Do these count as one punctuation point or a single new hybrid mark? What does using ending a sentence with such a mark say about the author⁇