1 - learn how to use the text formatting functionality to make your post look better and easier to read.
The most important is the content and not the coordination, I do not remember that someone gave merits to coordinate/styles.
4 - try to avoid participating in signature campaigns because this is the big issue in this forum and the reason of the low quality posts nowadays
Joining campaigns signatures is not a problem but profits from shitposters.
There are many merits awarded to people wearing paid signatures
Do not buy merit points from other users. That will make you risk getting banned.
Can you add the source of this information?