I was going to send you 1 Merit for this post but I checked out your post history & it’s littered with Bounty Hunting spam so I’m not going to now, sorry.
You’ll never rank up if the majority of your posts are in that shit hole of the forum. More posts like this though & you’ll rank up.
I always find this argument really funny. This is the one reason why so many newbies argue that it is really hard to earn a merit. They will post a decent and high-quality post and you will point out that they do not deserve it because of their other posts. Then what will happen? that newbie will be discouraged because he cannot remove/delete his past posts and cannot turn to a new leaf and will be forever be judged because of his past post and will never earn (or be lessened the chance to earn) a single merit in the future.
Think of it this way:
Let's say you have a colleague at work. This colleague has been there for a while - say twelve months. They aren't a good worker. They don't pull their weight and in meetings they generally just repeat the same meaningless nonsense over and over again, getting in the way of actual conversation and progress. They are rude, abrasive and obnoxious. Every time that they've spoken to you it has been to either bad mouth another colleague or try to sell you some bath bomb from the multi-level marketing scam they are involved in.
Suddenly and out of the blue, after a year or more of being lazy and rude, one morning this colleague starts being really friendly with you and offering to do some of your workload. What is your initial thought? "Wow, they are a better person now - I know, I'll go buy them a coffee and some doughnuts"? Of course not. You would be immediately suspicious and wonder what thing or favor they want from you.
Now, lets say that person is friendly to everyone and works hard all day and asks for nothing in return. And then does it again the next day. And for the rest of the week. And for the rest of the month. After a while you think "Finally this person has turned over a new leaf", and you start inviting them along to your Friday evening post-work drinks.
Merit is the same. One good post is not enough to erase months and months of shitposting, especially when it is obvious that as soon as the newbie gets that one merit they are desperate for, they will just go back to shitposting again. If you show a sustained change over weeks and months, then as has been pointed out already, merit will come your way.