My competitor have spammed 44k links in couple of days, almost 100% do follows and keyword in every anchor. He managed to take number 1 and two for keywords which are highly competitive in my country. He has maintained top positions around a week now with pretty much zero content on page. I guess spamming still works good? I see few links with free version of majestic seo and backlinks it shows are feeds. Are those feeds still how effective? How long this kind of strategy you think will hold him for top positions?