I found the tldr link to be useful. I think that if the content is relevant then there's nothing wrong with self-promotion. I looked at the comment history and

I found the tldr link to be useful. I think that if the content is relevant then there's nothing wrong with self-promotion. I looked at the comment history and he linked to tldr in 7/10 of his last comments over the last week. That doesn't seem excessively repetitive, although a disclosure might be appropriate.