2023 October 31 Telegram bot API outage. They did it again.

During the time from 01:00 UTC to 05:00 UTC, any attempt to send anything from a bot to a channel raised one of these errors:

• error_code: "400", description: "Bad Request: not enough rights to send text messages to the chat"
• error_code: "400", description: "Bad Request: not enough rights to send photos to the chat"

Normally this means somebody, using a permission management, blocked the bot from posting into the channel:

My policy was simple: to stop servicing the channel right away after this error is received.

And this is how I wiped out subscriptions for a thousand of channels. Again.

This time the thing even reached stackoverflow.