They do- and Telegram has been shutting down channels for incitement of violence since at least 2015 https://www.nbcnews.com/storyline/paris-terror-attacks/sec

They do- and Telegram has been shutting down channels for incitement of violence since at least 2015 https://www.nbcnews.com/storyline/paris-terror-attacks/secret-messaging-app-telegram-shuts-down-channels-related-isis-n465757 https://www.nbcnews.com/storyline/paris-terror-attacks/secre...