A mod might want ot move this post to an area around SEO and web development as that makes more sense. I assume by "Bani fits" you mean "Benefits".
Forum posts provide no benefit for Search word rankings of keywords because doing what you did - linking the word -- ends up getting a "No Follow" added to the link. As such, the link you included gets ignored and thus they keyword association you tried to create isn't going to get the juice you were hoping for.
You are best able to drive SERP value by putting the keyword on your clients page within context that fits not only the keyword but the overall topic of the site. Using the keyword effectively on the site is the smartest move. Using it appropriately in your meta context, image tags, headings, and such all will help associate the keyword to the page on the site.
Getting links with the URL and the keyword like you attempted to do here is also good; however, you need to be very, very careful. Doing the anchor linking on sites that don't relate to the keyword and the target site can actually get you penalized. We get requests to remove such linking daily now as people have realized that is a bad approach. Granted, most comment sections and forums all use nofollow directives to eliminate any value to these links anyway in order to avoid also getting penalized by the search engines.
You are better to work with content sites that cover the keyword topic. You can work with them to get your site linked using that keyword. That could potentially help you (provided they don't tag it 'nofollow' as well. I'd make sure, however, that where you get the link is content relevant and a good site.
Of course, you can always use PPC to pay for position on search pages too....