> In which case, this sort of thing happens all the time and this is only HN news because it's Twitter?
Yes, this sort of thing happens all the time. If you own some shares of an individual company (not through a fund), you'll get notice periodically of items to be voted on: proposals from the board (often routine such as handling accounting and audits), which the board recommends passing and which almost always pass, and proposals from individual shareholders, which the board almost always recommends against and which almost always fail. Many of them are ideological, some more reasonable than others.
Does anyone know of any prominent case where a major company passed a shareholder proposal? And/or the board recommended in favor of one?