Personally, I hate these dashes, and it has nothing to do with LLMs.

If you insist on using this hyphen look-alike punctuation, at least use it correctly: with spaces around it.

Otherwise, it's a hyphen. Whatever a "purpose— one" is?

Written english is a space delimited language. The hyphen makes multiple words into one pseudo-word.

Wherever you're using a dash, you should just use a comma, or maybe a semicolon.

Or, maybe you're minimememaxxing?

More nonsense in the new world...

Emdash separates, hyphen concatonates, endash is the one that seems superfluous.

Emdash is actually what people mean a lot of the time when they use parenthesis.