Bluesky is taking off like a rocket, and Elon Musk might’ve just lit the fuse. The decentralized social platform hit the 12 million user mark this week, reporting a massive surge of growth since its latest milestone of 10 million users surpassed just last month.

The platform reported Friday that it received over 1 million new signups in a 48-hour period.

What sparked this digital gold rush? Look no further than Musk’s Twitter (aka X). The billionaire’s been on quite a roll lately, but not the good kind. This week users found out about three major changes in the platform’s policies, some of which have rubbed longtime tweeters the wrong way.

The first one is a privacy policy update. Twitter is amending its privacy policy to allow third-party AI developers to train their models on user data. This change, set to take effect on November 15, has raised concerns about data privacy and usage—and there is no clear way to opt-out.

Next is something that may be worrisome to a more mainstream user database: Twitter is essentially removing the block function’s ability to prevent users from viewing content. This change significantly weakens user control over their online experience, and has been criticized for potentially exposing users to harassment.