Michael Pachter, an analyst for Wedbush Securities in Los Angeles, Calif., told Bloomberg TV that Zuckerberg's decision to wear a hoodie to a New York City meeting with potential investors on Monday suggests he's not mature enough for the CEO role.

"He's actually showing investors he doesn't care that much; he's going to be him," he said. "I think that's a mark of immaturity. I think that he has to realize he's bringing investors in as a new constituency right now, and I think he's got to show them the respect that they deserve because he's asking them for their money."

Pachter said he thinks Zuckerberg is better suited as chief product officer, rather than as the head honcho who deals with shareholders.

The analyst's critique of the Facebook creator's wardrobe choices caused some bloggers to fire back.

Om Malik wrote that the analyst should just see the black zip-up for what it really is: "a fashion abomination."

Alex Willhelm, a blogger on Thenextweb.com, hypothesized that if Zuckerberg started wearing suits it may be "misconstrued as the company 'growing up,' which could scare employees who currently like the way it runs."

Willhelm writes, in reaction to Pachter's comment about Zuckerberg choosing to be himself, "That's to say that he's going to build a $100 billion business and change the world? That's what the hoodie signifies?"

Well then, I think that he shouldn't take it off at all costs!"