It's a neat little mark but I don't think it has much of a chance being widespread because I think ?! has already won in real usage and doesn't have the fine detail problem. I think it has a better chance of becoming an official grammatical digraph than the merged mark.

▲ sillysaurusx 5 hours ago | parent | next [-]

Is there an overlaid ?? and !! mark? (For Chess.)

	▲	adrian_b 4 hours ago \| parent \| next [-]
		Besides interrobang, Unicode includes all 4 possible sequences of 2 "?" and "!". `203C;DOUBLE EXCLAMATION MARK;Po;0;ON;<compat> 0021 0021;;;;N;;;;; 203D;INTERROBANG;Po;0;ON;;;;;N;;;;; 2047;DOUBLE QUESTION MARK;Po;0;ON;<compat> 003F 003F;;;;N;;;;; 2048;QUESTION EXCLAMATION MARK;Po;0;ON;<compat> 003F 0021;;;;N;;;;; 2049;EXCLAMATION QUESTION MARK;Po;0;ON;<compat> 0021 003F;;;;N;;;;;`
	▲	zimpenfish 2 hours ago \| parent \| prev \| next [-]
		There's DOUBLE EXCLAMATION MARK[0] and also DOUBLE QUESTION MARK[1] if those will do. [0] https://www.fileformat.info/info/unicode/char/203c/index.htm [1] https://www.fileformat.info/info/unicode/char/2047/index.htm
	▲	echoangle an hour ago \| parent \| prev [-]
		‼ ⁇

▲ reaperducer 4 hours ago | parent | prev | next [-]

I don't think it has much of a chance being widespread

I first heard of it back when Usenet was still the hotness.

Apparently it's been around for close to a century, so if it hasn't caught on widely by now, you're probably right.

	▲	ahnick 2 hours ago \| parent [-]
		> I first heard of it back when Usenet was still the hotness. This is the first (and probably last) time that I will ever see the words "Usenet" and "hotness" in the same sentence. Well done, sir.

▲ saalweachter 3 hours ago | parent | prev [-]

It lost when computers overtook typewriters.

On a typewriter, you could type one punctuation mark, backspace, and then type another.

Even once computers added the interrobang to Unicode (or older systems), you either need to type in a numeric code, use a secret bucky bit, or select it from a graphical UI, none of which is worth it for more than the odd weirdo with a whimsical streak.

	▲	kevin_thibedeau 43 minutes ago \| parent [-]
		There have been video terminals that allowed overstriking glyphs.