The more you dig in to this project the more they look like amateur scammers trying their luck. No doubt coinsbit and BTCU are one and the same scammers.
I never knew Telegram bots steal IP details so many thanks for that warning.
See also
the most ridiculous marketing campaign on Telegram ever!
Note: Don't click on any link advertised there! Especially opening the Telegram bot submits your IP and other personal data!
~snip~
Note also again that estimated 99 % of the group members are automatically generated fake accounts, most of them already dead accounts, deleted automatically by Telegram!