This user considers singular they standard English usage.
’s
Thi's user know's that not every word that end's with s need's an apostrophe and will remove misused apostrophe's from Wikipedia with extreme prejudice.
A, B, and A and B
This user uses the serial commaunless its inclusion is confusing.
“...”! US vs. UK
This user uses logical quotation marks. Internal punctuation leads to factual errors. It's not a style issue!
;
This user is addicted to semicolons; they use them frequently.
"There's" with a plural subject
This user knows that "there's" with a plural subject is a pervasive grammatical error. There'sThere are too many people making this mistake. Don't be one of them.