I think a general rule to follow (for comments) is that:

"If it seems the least bit bad or you hesitate even for a second, Don't post it."

Basically I think the ONLY appropriate way to allude to your own content is that if you have similar content (In which might have more/different information about the topic) and you write a comment discussing their post first and maybe at the end writing something along the lines of; "I actually wrote a post similar which gives [explain how your content is different]" However under rare (Basically never) circumstances should you actually link or provide the Name of the article, If people want to check you out they will, if not don't spam them and be annoying. It's better to be found Naturally for the value you provide than by the spam you write and the negative value (problems/disrespect) you cause.