@SEO Power - you're wrong on so many levels I won't even try to explain. Google can't detect shit unless you make mistakes. And even if you make mistakes in most cases is too computationally demanding for google to be worth it.
@OP - Listening to experts will make you very dumb very fast. Most people with a blog are experts these days. To this day, there are only a handful of sites where I read good SEO advice, one of them being Moz which is so WH and biased that it hurts, but still has some good content. Most other good SEO advice I read was from blogs that have been unmaintained for years (e.g. BlueHatSeo.com).
How to know if some SEO advice you read is good or not:
1. If you understand more than 50% then is not great advice. I have written some very good guides in my time on BHW and one thing i noticed is if it becomes complex enough to be awesome, only a tiny number of people get it. I have seen here useless guides of simple methods get over 200 thanks and I have seen really great pieces of advice/guides that got 3 thanks and ended up buried in the forum. When I read bluehatseo.com I was already highly skilled in coding and tech stuff but on my 1st read I didn't understood more than 50% and most people who read that site didn't really got more than 20% of the info there.
2. If you've heard it in more than 3 places in that form (e.g. the method specifics) then there's a 90%+ chance it is crap.
3. If seems like a solid method that could make you good money but at the same time a method that would be affected by a huge number of people doing it, then is probably crap because is probably a) overdone, b) crap because otherwise the method owner would have not made it public.
4. If it requires no skills or little skills and promises high earnings, again is crap. These days good methods (especially SEO) require some good investments and skillset.
5. If is an easy method, then is crap (see point 3).
6. If is a standalone method and not a piece of a strategy, then is crap. Might work, but in the long run it dies.
OFC there are exceptions, but the points above cover over 95% of the methods and strategies known publicly online.
Another thing, SEO hasn't changed as a strategy since 2007. Same shit works. You just have to do it better and with a lot more moderation. That's when it comes to BH. For WH/long term, if people would spend their time getting in touch with others in the industry and developing relationships instead of trying to game google, they'd get a lot farther. 10 good relationships will get you farther than any method or BH stuff.