EFF:

Contrary to the inviting “Sounds good” button to accept the new policy and get to tweeting, the changes Twitter has made around user tracking and data personalization do not sound good for user privacy. For example, the company will now record and store non-EU users’ off-Twitter web browsing history for up to 30 days, up from 10 days in the previous policy.

Worst of all, the “control over your data” promised by the pop-up is on an opt-out basis, giving users choices only after Twitter has set their privacy settings to invasive defaults.

It’s typically sleazy for Twitter to have the pop up give the impression that nothing will change.