Until recently, I worked as an editor (engineering, science), and I'm the shiny happy person with a t-shirt that says, "Silently correcting your grammar" (in my defense, it was a gift), so this is an entertaining thread.
The grammar, usage, and punctuation errors are fun. ;-)
All you folks who hate how meaning and usage drift are prescriptivists: you want a rules-based linguistic world where E36 M3 never changes. Problem is, while you're railing against words being "misused" a certain way, you're using words with meaning/spelling that has also drifted. Language evolves.
Language is always evolving. If you're down with that, then you're a descriptivist: you believe that language is more about how it's actually used. I personally don't like how--according to a prescriptivist--"regards" is frequently used incorrectly when someone's talking about something, e.g., "With regards to your Yugo..." Regards are what you give to Broadway, or grandma and grandpa before hanging up with your Aunt Susie. It's "With regard to your Yugo..." But it's such a common "error" that I think it'll likely become "correct" in the future.
If you want to give more of a rip about writing/grammar/usage/punctuation, skip Strunk and White, and, especially, skip Eats, Shoots, and Leaves." This is GRM, so do it on the cheap: buy a used, past edition of Style: Ten Lessons in Style and Grace for $5 and any past edition of the Chicago Manual of Style with the grammar and usage chapter written by Bryan Garner (15th edition, at least, and maybe prior editions, too). You're buying the book just for this chapter, not because you want to become a full-on word dork. Garner is arguably the foremost authority on the topic.
(Full-on word dorks should own Garner's Modern English Usage, because it's awesome and it's funny.)
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@Sarah: I have a pet peeve about GRM's style guide: there is no space on either side of the en dashes GRM uses instead of em dashes to indicate pauses, to explain something, etc. The en dash is so short that it looks like a hyphen. I have no idea what AP says about it, but Chicago says that an en dash is "to connect numbers," e.g., 2000-2023, "and, less often, words" (and goes on to note a couple edge cases). Meanwhile, an em dash is for "amplifying or explaining," "separating subject from pronoun," or "indicating sudden breaks." Em dashes shouldn't be preceded or followed by spaces.
TL;DR Use em dashes, not en dashes.