Wow I didn't know about this new trend by scammers on Telegram. Glad I've seen your thread, I'll dig further into the partners' profile the next time I have doubts on their legitimacy.
On the other hand, I don't send ETH to anybody nor download apps I'm 100% sure that are the legit ones, but anyway I think it's a great sample to show to beginners before they fall into any of these traps.
Yes,always check their profile closely. most scammers have no user ID. and If someone DM you first think why he wants to contact you. if he introduces more attractive/profitable offers don't think twice, bite him.