It doesn't make them bad. It makes them disingenuous. This Tweet did not do any damage to people who has held onto Tesla stock. It did damage to short term arbitrage seekers that were trying to make a profit by being the first to act on the news. These people were at one point shareholders, but they likely weren't shareholders before the Tweet and likely aren't shareholders now. I don't and I assume the general public doesn't have a lot of sympathy for that type of trader.