PPC gives you an opportunity, to attract relevant traffic on your website without doing any SEO. Though it cost you a lot so it's essential to target only relevant keywords which ensure maximum ROI.
PPC is good to get traffic to your website. Also gives immediate simultaneous exposure of your ads to literally millions of viewers around the world. You can create a campaign strategy to target specific groups or individuals who already have an interest in your product or service and are ready to buy.
Well in this case it appears to be a short one sentence post used as a placeholder for your forum spam.
This is the typical technique of a forum spammer, create a very short one sentence post along with links in the signature to spam the forum. They are easy to spot because they generally include a generic question with a keyword inserted for each forum that the spammer is spamming.
It works like this:
Title: [INSERT GENERIC KEYWORD HERE] Benefits
Message: "What are the benefits of [INSERT GENERIC KEYWORD HERE]"