One of my (many) pet grammar peeves is the overuse of exclamation points. I’m not sure if the interrobang will improve things or result in more problems.
The application of the interrobang is pretty straightforward. According to Wikipedia:
A sentence ending with an interrobang asks a question in an excited manner, expresses excitement or disbelief in the form of a question, or asks a rhetorical question.
- How much did you pay for those shoes‽
- You’re going out with whom‽
Use of an interrobang may be considered somewhat redundant, considering the same effect is captured in standard English by ending a sentence with both an exclamation point and a question mark.