They said pay less attention to how to earn merit and focus more on how to produce helpful content (which includes solving problems and making useful suggestions).
And one type of post I considered very valuable and that is highly appreciated is problem-solving tutorials and ideas that will help the Bitcoin network and every other thing that you have more knowledge or ideas about than others, which you can share, will be highly appreciated.
Yes, maybe this could be the secret, just post good quality as sooner or later with the amount of members here, you will get a merit one time or another. It might take some time though unless you are really have above average technical skills then maybe you can share it in boards that people appreciate.
So don't take it like it's something that you will have to every post. Just share what you have learn throughout by staying here and reading old post of some members. And then maybe you can create your own tutorials or ideas.