I personally don't distrust Signal.
I just refuse to use it. This comes up on HN a lot and everytime I have to admit that I am kinda unfair here: Signal is heralded as the nice and secure solution - but seems incomplete to me. I don't doubt all the more clever persons that tell me that Signal is the best choice for encryption right now. But as long as it doesn't support federation (I miss XMPP) and as long as it does require a phone number (None of anyone's business, not required for my contacts, a baaaad way to handle identification) it is utterly broken for me.
I'll continue to use Telegram for family, friends and casual business stuff. The applications are awesome across platforms, I can initiate conversations with people without using a phone number. Worse encryption? Probably. Likely. Just as centralized? Yes - hate it there as well.
But I hoped that Signal would be the solution. I'm unfair. Signal gets judged for NOT being open (federation, phone number). Telegram is just a random service that I use instead then - works better anyway.