I imagine that probably puts an end to the "it must be a bug" considerations. Seems a bit heavy handed. But this seems to be Substack's official account: https

I imagine that probably puts an end to the "it must be a bug" considerations. Seems a bit heavy handed. But this seems to be Substack's official account: https://twitter.com/substackinc https://twitter.com/substackinc Or just someone paying for the check & masquerading, so I can't be sure.