On the page where the posts are listed, have a button that when clicked copies the "quote" of the post. In this way, when browsing the posts, it would not be necessary to click on the link of the post and then create a quote, just clicking on this button and having the BBCode code of the quote in the computer's transfer area.
Unfortunately this requires your account's session code.
Is it possible to somehow sort it show the correct number of posts?
Check now. All posts on topic 5121680 (old Nigerian "mega thread") should have a board_id of 275 (Nigerian board), previously 11 ("Other languages/locations").