Guerilla Marketing Online vs Traditional Internet Marketing?

I'm really curious as to why so many people suggest traditional internet marketing tactics over Guerilla Marketing tactics?

Examples of guerrilla marketing:

• Launching an epic content marketing campaign
• Driving traffic and sales from email lists and JV alliances
• Creating viral marketing campaigns (the bucket challenge!)

Examples of traditional internet marketing:

• SEO (link building etc.)
• Media buys (pay-per-click etc.)
• Blog commenting, cold-calling, and so on.

I see these recommendations all the time here on the forum and everywhere else online, but when I look at people who are crushing it online, I don't see them commenting on blogs, building keyword lists or spending thousands of dollars on pay-per-click ads.

I see them launching new products almost every month and using multiple email lists to drive sales of the new product. Then affiliates jump on board and drive sales higher. While all this is happening, a new email list is being built where the whole process can be duplicated.

So basically, these experts don't even care about SEO, link building, social groups etc., because they're constantly building their lists from the products they sell every month. And when they do focus on Facebook or Twitter etc., most of its outsourced or automated somehow.

Maybe THIS is part of the reason why so many people struggle online. They haven't developed the skills to do these things or they never heard of them before?

Maybe it's time to focus less on the noise being published online, and time to look REALLY CLOSE as to what's going on behind the curtains?

What do YOU think?