User blog comment:MisterWoodhouse/Social Activity, the 2010 Editor, and Unpausing Migrations/@comment-1807002-20201018190218/@comment-24006128-20201029201731

It might be going through a whitelist exception, which we've mostly locked down due to safety concerns. External images don't go through our image review process, so we are very cautious about which sites get on the whitelist.