In my opinion, this message is a lesson for repetition, sometimes you need to be reminded repeatedly to remind or make it easier for newbies who have just joined the forum to avoid things that are prohibited on the forum.
1. Avoid burst posting:
Regarding consecutive posts, @mprep has reminded forum members in the Thread
(Unofficial list of (official) Bitcointalk.org rules, guidelines, FAQ) contained in point number 32.
32. Posting multiple posts in a row (excluding bumps and reserved posts by the thread starter) is not allowed.
2. Trading of merits:
The merit system is not directly moderated by the forum, but moderators encourage people to give credit to posts that are objectively high quality, not just posts you agree with.
[1]Merit trading is not recommended in forums because it will clash with the rules applied by the merit system in the forum. The case that befell this user can probably be guessed at where merit trading is heading.
[2]1.
https://bitcointalk.org/index.php?topic=2818350.02.
https://bitcointalk.org/index.php?action=trust;u=940276