I need advise as someone has attacked my site with lots of blog comments mostly no follow in the adult niche (keywords such as viagra, blowjob, etc) website has nothing to do with adult content!! Now just found lots of links with our main 2 keywords in it, blog comments again. I read that mass spamming will get the site a manual inspection by google! Even though they are no follow, google "nofollow backlinks for negative seo+Matt Cutts" 200,000 links in both, in just 3 weeks! I know about the disavow stuff, but I think it is too late now? The site is less than 6 months old. Am I best starting again?