2) They try to use arguments about jurisdiction to avoid helping law enforcement with lawful requests
All the other messaging platforms (WhatsApp, Signal, iMessage) have started to use end-to-end encryption to avoid being in this position in the first place. But they also comply with law enforcement and share the data they do have, and don't hinder lawful investigations.
The biggest issue with Telegram is that due to the lack of end-to-end encryption it is a huge security risk; how do you know the operators aren't selling access to your chats to some criminal actor or a repressive government agency? You don't.
What makes Telegram unique is:
1) They have access to almost all the content
2) They try to use arguments about jurisdiction to avoid helping law enforcement with lawful requests
All the other messaging platforms (WhatsApp, Signal, iMessage) have started to use end-to-end encryption to avoid being in this position in the first place. But they also comply with law enforcement and share the data they do have, and don't hinder lawful investigations.
The biggest issue with Telegram is that due to the lack of end-to-end encryption it is a huge security risk; how do you know the operators aren't selling access to your chats to some criminal actor or a repressive government agency? You don't.