It's Discord that's asking you for verification of the account. We're not getting your phone number. This is standard practice on bigger servers that allows for a better user experience, filtering bots/ spam accounts, trolls, etc.
Could companies please STOP lying about it being Discord's choice, its not, is the Discord server's choice to ask for it.
Based on my reading of their response, they didn’t lie. Sure, they enabled the option for phone verification, which they have a right to do, but they aren’t getting possession of your phone number, the Discord system is. So while it’s a valid complaint that they’re choosing to turn on that setting against your preferences, the charge that they’re lying isn’t.