Books you have read have told you to use spaces after emdash? Mostly in writing we do not use spaces even though there is no fixed rule as such. https://www.merriam-webster.com/grammar/em-dash-en-dash-how-...
replyAnd yes you cannot care about grammar that is fine but calling someone a personal insult because they pointed out something impersonal in your comment is not ideal also and is unusually catty.
> Spacing around an em dash varies. Most newspapers insert a space before and after the dash, and many popular magazines do the same, but most books and journals omit spacing, closing whatever comes before and after the em dash right up next to it.
reply