Launched the website in question in early 2010. 0 backlicks, focus mainly on long tail keywords in a highly competitive consumer goods product.
Originally, here is trend of how traffic seemed to go. New page launched, probably 4 months until seeing good traffic volume. Holds steady at good traffic for 6-9 months and then falls to almost nothing permanently even though I add content to these pages to try and "bring them back to life". Occasionally, but very rarely, can I ever bring a page (even one that saw high traffic at one point), back to any kind of decent traffic.
And every now and then I seem to have a page that will hold strong rankings for a year.
Any insights back of the scenario I described. I'm guessing I'm getting hit with thin content penalties, but is it typical to achieve good rankings for 6-9 months before getting hit with then content penalties?