Welcome to the Q&A Forum

No Not at all, think of it like this you post a great quality article on a site that is a good fit, inside the article is say an offer or promotion, well if Google crawled the site every week or month then your article is not getting indexed until the crawl, the promotion could be over by then or the information outdated so using such services can insure your article is picked up quickly & you get your just deserts.

Hi! A suggestion for next time is to link to the article with the original discussion. This was formatted such that most of the people thought that you were the one who wrote this, rather than Marie.

Yeah, its better to ask then do something bad such as hidden content which google would not like in the slightest!