Discord is not exactly trust-able either,
It's interesting, thanks for letting me know about that.
I'll use them regardless of that since nothing I use Discord for is important or critical... I mainly use Discord because it is just convenient to use for personal conversations which don't contain sensitive/confidential information. I'd be disappointed if data was leaked but at the same time, it isn't going to be damaging/catastrophic to me, and it wouldn't be something I'd need to worry about given how I use Discord.
Of course, that doesn't mean I'd like data to be leaked, because that would be foolish. What I am trying to say is that despite the inability to sue if such were to happen, I wouldn't be fussed about it personally because it wouldn't affect me much.
Discord tends to be marketed to gamers anyway so the likelihood is that serious people who need to have serious or confidential conversations will be using work-promoting platforms, but who knows.