Sometimes I find myself being added to Telegram groups where they are doing bounty campaigns for new coins but at the end of the day, people will start complaining that the project is dead. In most cases I exited from the groups immediately I find myself there because I feel they are prone to defrauding people.
This makes me to wonder if bounties really pay.
Actually someone added you because the project they were involved in required adding people to the group. Generally it's an airdrop campaign. If you don't like being added to a random group, you can set it in the telegram settings. You can set in privacy and security.