Mate, it’s a style thing that depends on which style guide you’re following

AP recommends spaces around them, whereas Chicago doesn’t

besides if we’re critiquing incorrect following of English orthography

—Sentences should be capitalized

—The word “don’t” requires an apostrophe

—End sentences with a period

—That’s incorrect usage of an em-dash at the end there — but what does it matter anyways ;)

Books I've read would disagree. Are you the emdash police?

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