1. Spinning when done right = produces 100+ versions of an article, each being 90%+ unique, human readable and can pass manual moderation at any time. I use all the versions in my web 2.0-s without any problems at all of deletion, indexing or ranking. It costs me $80 for such a spintax and I can populate 100+ web 2.0-s at once, but if I would follow everyone's advice of using only unique content, it would cost me AT LEAST $500 for 100 articles and those $5 articles would be most of the time crap anyway.
2. Keyword density = Ever since I followed phpbuilt's advice on his authority guide on keyword density, site structure, keyword weighting, internal linking etc... I was able to LITERALLY double my income and ranks. Find his thread, it's pure gold. I am not affiliated with him or anything (hell he doesn't even have any service being sold in BST), just sharing my experience. I have no idea why many people bash him and say it doesn't work. It works for me and countless others I have asked.
3. Pure SPAM still works! Churn and burn still works! 301 redirection with SAPE links still works! Parasite sites still work!
The way of doing things might have changed, but all of the above still work wonders and will continue to do so, yet countless people follow Google's shitty propaganda and say it doesn't work anymore.
4. You only need a PBN nowadays to rank = not true, I still rank many keywords on first page just with web 2.0 links and tiered linkbuilding. It's true that the majority of those keywords' competition is either medium or low, but they are really profitable. Keyword research is the key!
Speaking of tiered linkbuilding, that still works as well and GSA is my favorite tool for those campaigns.
. Not believing people are just outing it for free but google propaganda will always win which is good for us