Not just paranoia
"The car biz has plenty of ardent fans who love the idea of beta testing buggy code at high speeds and reflexively characterize critics as trolls or short sellers of Tesla stock. There are of course people who highlight Autopilot problems with an eye toward investment, as can be seen from this tweet."
Whilst there is plenty of fanboi seen in Tesla owners, it should be noted that there are a number of forums and even websites, setup for the sole purpose of shorting Tesla. They aim to find stories or news items involving Tesla and attempt to find and publicise any negative aspects that can be used to pull down Tesla's share price. It is bizarre that some people seem to be spending a disproportionate amount of time and effort into shorting this one company Whilst Musk and his fanbois may seem paranoid, there is some validity to their claims.
Biting the hand that feeds IT
