>>7407683 (pb)
To the anon who last night asked for a spreadsheet with letters Q put in square brackets.
In case you haven't solved it yet, there's a pastebin at
https://pastebin.com/ZkBTvk4D
that lists all the single letters (case insensitive) I've found in square brackets.
Structure of the pastebin is:
"[letter]:" "[#postNum]:" "postHeader" | "textLine"