I think it's probably possible to be in an expert, just most aren't .
And because there's not much in the way of formal training, it's easy for anyone to say they are if they've read a few blogs.
Because it's all changing quite quickly, it'd be hard to set up an official course to cover it all - to set the bar for standards. My brother studying marketing in college recently asked why they didn't look at Online Marketing.... so that says a lot.
I find for now, if people say they are an expert, they have to prove it! Don't just take their word for it!