now, my wonder is, why all this fight to get the merit? all the accounts are bounty hunters so they need the merits to participate?
Most bounty campaigns need to be a Jr. Member in order to participate and being a Jr. Member needs 1 merit. However, you can participate in social media campaigns in which being a newbie is acceptable.
In my case, I really desire to rank up to have Avatar function. It is a bit silly but I want to have a meme on my avatar or at the very least I can say that I already have access on the privilege available only for high-ranked members.
Fighting for rank up to participate signature and spamming on forum. A quality poster will never fight for merit.
You should know that many people want to access the other user functions which are only available if you obtain a certain rank. Some examples are posting images, gifs, and even having an avatar. If you do not have these functions, it is because you are a lower-ranked member and you will envy the ones (the higher-ranked) that have the said functions - you need merit to rank-up hence merit is not just for bounty campaign.