In this tenth installment of the Open Source CEO Series, I shifted gears again to talk with someone that has chosen not to carry the CEO title, despite ample opportunity to claim it. (I know a range of VCs who would love to invest in Drupal.) Dries Buytaert, the founder of Drupal, is Linus-like in his ability to build an amazing community without undue concern for commercializing his success. I think he's one of the most interesting people in open source, given what he's accomplished and what he continues to forego in terms of cash and publicity.