Really great read. What seems to be missing from the author's 10 years is actually building value. Affiliate marketing, arbitrage, finding a cheap ad platform to flip for some clicks - none of this is really building something of value for users to buy. I feel like 10 years spent product building or building up a set of useful services would have had a much greater ROI for this guy.
I felt like if he stuck with this original tech review site, his income would have grown more steadily, and while he may have missed out on some "rich" years, the overall results would be a website/company with value.
Looking back now I think I would try to not make money via ads on my blogs and instead create some info product that I could have sold to that audience. A complement to the information that they were already coming to the site to get.
Diversifying income would be key - AdSense+Private Ad Sales+Affiliate Promotions with your own "products" sprinkled in. That way if an affiliate cuts you off, or Google decides to nuke your account you still have other income streams.
*You can tell I haven't left this market completely ;)