Most (all?) keyboards I've used only have a combined hyphen‐minus key (-) which is distinct from a dash (—) and isn't quite a hyphen (‐), so I get why most people don't care. All font dependent as well to add to the fun, and my examples here render differently in the textbox and the comment!
In social media comments they came across as pompous even before LLMs and werent particularly appropriate for casual comments.
Though to be fair some people enjoy coming across as pompous and embrace the 'better than the peasants and their lowly minus sign use' attitude. Makes them feel special or as if their writing is markedly better than those without fancy punctuation. (It isnt).
Also yes, im describing two writers i know that are adamant about the em dash being 'a sign of an intellectual wtiter'...they are insufferable pricks.
I think it’s a bit of a stretch to call a part of grammar pompous. It’d be analogous with me calling your post lazy due to its various typos — I’m not, I just found the comparison apt.
It's a different stylistic choice (em dashes are nice and all), but it's not how I think, and my writing reflects how I think.
I also will often use the fabled semicolon. It's easy to use with contrasting statements, but that's not its only use; I can use them in some situations to elaborate where em dashes are used.
I'm not saying they are a perfect replacement for em dashes (again, em dashes are cool), but it's just always been my personal style.
I regularly use the semicolon, especially in a sentence where this are commas use in another way. In my mind, a semicolon is a "greater" separator than a comma; used to separate parts of thought in the same sentence (vs grouping of items or a pause).
I’ve used it for literally decades for both formal and informal writing. On social media and in text messages. It is a very useful way to communicate/pace your sentences.
You can’t reliably predict the output of a non-linear model with a simple linear model, no matter how hard you wish it.