I don't trust twitter and every time they ask for my phone number I just kill the app and restart it to hide the unclosable pop up asking for my phone number.<p>SMS is a terrible 2FA anyways
2FA means "you lock yourself out of your account forever"<p>I just had the hole my Yubikey attaches to my keyring break. If I wasn't lucky it might have fallen off my keyring and disappeared. (No more Github for you!)<p>As it was I managed to stuff it into one of the pockets of my gym bag.
Shill/bot/propaganda accounts don't care about 2FA. Those constitue a huge percentage of Twitter, so I'm not surprised at the low adoption rate.
How much does 2FA really gain us users? What's the more likely scenario, that i) someone guesses or steals my password or ii) some organization breaks into Twitter and steals <i>all</i> passwords and the keys as well? Why would Twitter face better than Yahoo!, Alibaba, LinkedIn, etc.?