Honestly I never thought that my question will receive so much attention, but it did.
The user displayname wrote three related comments, and, in my opinion those comments provide the best answer to my question. I asked him/her why he/she didn't post it as an answer, and it is because the question is protected, and he/she comes from an other community.
The person suggested that I can copy paste it into a self answer, but it does not seem the correct way for me.
What can we do about this?