They still be shaddy, for example being persecuted by a government for your Faith. They turn over all your Contacts and ip addresses of your contacts so now all your friends can be persecuted... Substitute faith for: whatever...

Are these statements verifiable? Honestly interested to learn more about every argument against Telegram.

Telegram's "headquarters in Dubai" is just a legal fiction, a registered address only. A journalist who visited that supposed headquarters found no one at home.

Fine. But where is the truth in that it is sent to Russian servers? Perfectly open to any evidence.

Telegram is a Russian company in the sense that it's ownership is Russian and Putin could jail their family members at any time. I don't care what the paperwork says or where the servers are physically located. For all intents and purposes, they are Russian servers from a Russian company.