I've been reading up on bounce rates and even though there are many who say G don't use this data from GA, there are also some who state that G could be using the length of time it takes a user to come back to the SERP and click on another link. This got me to thinking, if the length of time between SERP clicks is factored into the results, then could your site be trashed by a competitor using top keywords you use, clicking on your site and then returning to the SERP within seconds and clicking on another site, doing the same thing with another competitor and then eventually clicking on their own site and staying or not returning to G for some time. I know having this automated is not difficult, so I wonder, would G really use this as a signal, and if not, then why have a bounce rate at all. This line of thinking also got me thinking down the path of, what if a competitor did all the things recommended not to do, to your site, creating thousands of links for a few weeks and then nothing, or creating a heap of crappy articles, keyword stuffing, etc. or am I totally off on this? I'm still trying to learn SEO but to me this seems plausible and possible to influence a competitor ranking in the SERP if all the things you should not do to your website be done to a competitors. If this is possible, what can I do to prevent this, other than the usual SEO, what if they do more than I do per day and I'm constantly behind the eight ball?