Wait, so what spacing is generally preferred for the em dash? Thats interesting, I never formally learned how to use one so I'm curious (I've not been to college, I have no idea if its part of typical higher education curriculum if you take any english courses)

I abuse the fuck out of commas so I reach for dashes or ; when I want a longer pause that isn't a logical end point for a thought. But a semicolon feels somehow a bit more formal to me, so I use it less for general online chatting