Beware the Necrotic Touch of Zombie Ex-Founders

Jason Lemkin warns about "zombie ex-founders" - previously successful entrepreneurs who made money but whose companies ultimately failed, and who now undermine newer founders through subtle criticism and insecurity rather than genuine mentorship. These individuals, trapped by their past success and unable to replicate it, drain the energy and confidence of emerging startup founders through backhanded compliments and veiled digs. The article contrasts this toxic behavior with Silicon Valley's culture of generous mentorship from genuinely secure successful founders.