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But there are some users with quality posts that are not much different from my quality, but they are already ranked above me. I asked what they did to make it so easy for them to get it.
Your current activity is 100 posts which is not enough for the next rank even if you reach the merit requirement, but it is a good achievement if you calculate the ratio between the number of posts and the amount of merits you have earned. This means that every 10 posts you publish have the potential to earn around 1.2 merit points (cmiiw).
I don't know who you are talking about, but first try to take a closer look at the number of posts of the user you are referring to and then calculate the ratio.