I have been getting mixed opinions regarding keyword stuffing and weather it works, doesn't work, or will flat out get me banned. I understand that including the same keyword 100 times does not do any better for me than just including it a few times (say I spam "funny videos" all over my blog). The keyword stuffing I'm talking about is using DIFFERENT yet related keywords hidden in white on white text. Say I have an autoblog dedicated to cars. I will stuff cars, fast cars, racing, honda, toyota, d16, b-series, motor swap...... basically anything and everything related to cars. This works for craigslist ads, however I am not sure how well it will work in terms of SEO As far as content randomization goes I will be primarially scraping my content with my modified version of WP-Robot (I need to scrape sites praticular to my niche) however I am worried about getting penalized for duplicate content. Assume I scrape a youtube video and all it's comments would it make sense to replace some spaces with underscores, tack on some puncuation, replace certin words with their synonyms based on a simple dictionary, and replace the username of the commenter with a random one chosen from a dictionary? The purpose of this is to generate "unique" content in the eyes of Google's spiders. Will this strategy work or should I just save myself the effort and stick to standard scraping. I just need enough SEO to get a decent rank then flip the site. I could care less about the long run.