It's not just any idiosyncrasy. For example, someone might have the idiosyncrasy that whenever they mention some not-completely-common concept they put in a li

It's not just any idiosyncrasy. For example, someone might have the idiosyncrasy that whenever they mention some not-completely-common concept they put in a link to the wikipedia article on it, which I think might get rather annoying. However, I would believe that they thought they were being helpful to the reader, even if they weren't. So in that case, I wouldn't think, "if they don't care about communicating this, why should I bother reading it?"