You Know What Really Grinds My Gears?

I remembered today how much it bugs me when people use two exclamation marks at the end of a sentence. For some reason I feel the only reasonable options are a) one b) three or c) a ludicrous amount, each indicating a successively higher degree of emphasis. An example would be as follows:

• We're having a baby! (Usual case; typical degree of excitement)
• We're having a baby!!! (A successful result of months of fertility treatments)
• WE'RE HAVING A BABY!!!!!!!!!!!!!!!!!!!!! (Tweet posted by the last surviving human couple in a post-apocalyptic future)

Yet another unreasonable pet peeve of mine, I suppose.