MARKET TICKER: Twitter Stock Heading For Zero: “Yes, that’s a bold call, although a lot of people would think not with the stock down from $53 and change to under $19 in the last year. But no, this isn’t just about how are they going to make money (which is a clean and open question) — it’s about their new-found zeal for ban-hammering anyone who’s conservative — and has the nuts to voice that. . . . It’s only a matter of time before a public company that does this sort of thing winds up like MySpace.”

If I were a Twitter shareholder, I’d be concerned that Jack Dorsey is running the place as his own little super-PAC and not focusing on maximizing shareholder value. I might even sue.