The point is that the absolute majority of posts in your topic are not related to your service and look like off-topic posts, and some posts even look like plagiarism. If you want to announce articles on your blog, limit yourself to the title of the article and be sure to provide a link to your article. There is no need to post excerpts from the article itself. If one of the users is interested in your article, he will be able to follow the link and read the article in full on your blog.

Here is an example from the Russian section of what an article announcement looks like: