There's nothing admirable about selling out the movement you built to back a candidate who worked with party operatives to sabotage your campaign and oppose everything you campaigned on.
Sanders ended his campaign exactly wrong, and has completely disoriented the movement he built and funnelled it into a bourgeois political party that sabotaged him from day one-- and he will extract nothing from the DNC in return for it-- neither for his personal gain, nor for his movement. What he will get in return, is a candidate who campaigned in 2008 on using nuclear weapons against Iran, who lobbied in Haiti to suppress the minimum wage at the behest of sweatshops, who used the state department to back a right-wing military coup in Honduras and then deported the refugees back to die, who lobbied for fracking around the world as Sec of State, who voted repeatedly as Senator to authorize and fund Bush's illegal wars in Iraq and Afghanistan, who called the TPP "the gold standard in trade deals", who supported NAFTA as first lady, who lobbied for racist drug laws, who opposed gay marriage (and continues to privately), who calls Chelsea Manning and Edward Snowden traitors who should be put to death, who backs the Keystone XL, and who is backed by all the same banks who are backing the DAPL pipeline going through Standing Rock (which is why she's silent-- she will complete the pipeline when she is president).
People said that Bernie could be like the "Ron Paul of the left wing" and move the right-wing DNC to the left. Yet, at the end of it, Bernie has proven himself a political coward. Ron Paul ended his campaign by refusing to endorse the GOP nominee, and endorsed the Libertarian Party candidate for president, and gave birth to the Tea Party, which has shifted both the DNC and GOP to the right wing. Bernie could have done the same by backing Jill Stein.
Bernie forfeited his chance to build a serious left wing challenge, when he endorsed Hillary. His "our Revolution" is neither revolutionary, nor ours, it is just another liberal nonprofit in a long line of failed liberal nonprofits formed in the attempt to reform an unreformable Wall Street political party. The Tea Party sought to make a far-right party more right wing. It succeeded. If Bernie's movement is an attempt to reform a center-right political party and make it leftist, it is doomed to fail.
What's needed is for the American left to say Goodbye DNC and work to build a politically independent party that runs it's own candidates, which remains independent of corporate money. Jill Stein is doing that work. I back her, and I back the Green Party. Because with the atmosphere over 400ppm CO2, the future of the planet quite literally depends on it.