Response to Cody Crawford's post-Social Media a promotion

I also believe that social media can be a great way to promote a product.  But also as Cody touched on, there are way that it can also be unsuccessful.  The main way I think it can be unsuccessful is just the annoyance that can come from promoting on social media.  I can't tell you how frustrated I get sometimes when there are all these ads popping up on my Facebook page, or getting in my way on twitter.  So I believe that to much promotion can occur on social media, and instead of making me wanting to buy the product, it drives me to stay away.  Can you think of any other ways that social media promotion can be unsuccessful?