[handbanana]

I think its valid to point out.

If the author is joking about being world class, that would be kind of odd. So is saying you're world class at something in general (unless you're the tiger woods of that something and can demonstrate/back it up).

I have found it is commonly a trend with frontend/javascript/rails devs to be senior/lead/etc after a few years of experience. I think there's a variety of reasons for this, but going back to the author he probably is very adept at his given field. But to brand yourself as world class seems a bit much.

Personal attack? Nope. But if I saw that line before interviewing a candidate - I'd definitely probe them about it