The difference is that Amazon had a clear way to make money: make their revenue stream bigger. That doesn't and won't work for Twitter, because Twitter doesn't

The difference is that Amazon had a clear way to make money: make their revenue stream bigger. That doesn't and won't work for Twitter, because Twitter doesn't have a revenue stream to make bigger. Saying they're the same thing is like saying that the U.S. and Afghanistan are the same, because they both had elections. Well, true, but in one place the elections were not rigged, and in the other there's a good chance they were. "They still had an election!" of course, but there are significant practical differences.