Is it a good idea to search for relevant images on Flickr and then leave comments with your money site link? For example search for facebook and leave comments on 100+ images saying "At www.realpeterbruce.com we specialize in the best social media promotional services. From Twitter to YouTube, iTunes to Facebook - We have it covered!" Can this do any harm or is it just a waste of time? Also is there a bot of faster way of posting comments?