Many people say Telegram is a hotbed of scammers - and it's true that on Bitcointalk there have been a few times when clones of the project have contacted managers to try and scam them, so keep your eyes peeled.

Since I'm now a Premium Telegram user, I've had a few DMs offer me jobs that don't make sense, in the sense that they're offering me a big salary and I've never met them before, and then they suggest I install an app to play games.

Because I had started to feel suspicious, I didn't think long and immediately blocked it.
I wouldn't trust anyone on Telegram if I didn't know them.