Most people either think it's too much work, or they cannot commit to doing video blog posts that take 15 - 20 minutes, and put you on any mobile/laptop screen where an existing or potential customer, joint venture partner, blogger or reporter might wish to find you 24/7/365.
The idea with blogging is to start a data-driven feedback loop that you can fine-tune 'on the fly' similar to the following process the author outlined in the article:
* Capture every idea * Don’t wait for good ideas – shipping regularly creates quality * Don’t obsess — publish posts on the 2nd draft * Watch realtime analytics and heavily polish only the posts which start to take off
Of course some types of startups enjoy viral growth through invites/recruiting, so perhaps blogging is less important for them.
For many startups creating compelling content, syndicating the heck out of it, and connecting with as many people as possible are core drivers of organic traffic growth.