Let us change the mention @ symbol because it interfere with Twitter, Insta, Discord, etc.

agreed, I don't use social media but the @ interferes with academics placing pandoc-friendly citations in their notes.

Can I suggest you describe what actually breaks for you? By itself NotePlan can’t “interfere with Twitter, Insta, Discord etc.”, so what is it about the linkage that is a problem? The reason I ask this is that I think I have already proposed a different solution, based on what is difficult for me. Maybe its the same for you, but at the moment I can’t tell.