I'm just curious. Do they do their own computer stuff? like the security aspect etc. Or do they have others do it?
I don't think they even need to do such stuff, for such large bloggers, they should have everything ready for them, they just need to contribute their ideas and content I guess.
I think he is a great SEO and internet marketer but not a computer genius. And i dn't think everyone should know everything about computer. To be a good marketer and SEO , people should have capcity to know others psychology not computer's psychology. And to be a programmer you need to have capacity to know computer working and server working capcity. f you aim to be marketer then you should start learning non-programmers psychology (ordinary users).And if you start learning PHP to be a great marketer then LOL....I can't say any more think yurself what will be the condition.
Agree with vijayan but learning PHP is still needed. When you have plenty of knowledges about webmastering, you can modify your site more into what you want to be.
The thing is, when you make money by connecting with people and giving them what they want, you don't make money by doing the technical part of stuff. You make money with your writing. Then you can pay others to do the tech side. It's much more efficient.
you have another option to know how much intelligent he is... http://forums.digitalpoint.com/member.php?u=1641