Before you post sales pitches everywhere, think of your customer journey.
Some customers have never heard of you and are not in need of your product. A sales pitch is the wrong way to make a sell at this point. You might consider creating a “need” – whether artificial or true or just building relationships for the future.
Some customers need your product but have never heard of you.
Building trust is important at this point. Some customers have heard of you (and are convinced) and need your product. Go ahead and sell! In fact, sell a good after-sales support.
The most important thing is to understand the customer journey. Not every customer should be your sales target all the time.