spot on, but you missed that critically they don’t charge for free voice. If you want higher bitrate then they charge

FWIW a bunch of people do seem to agree (though that isn't to say a bunch of people disagree). Maybe it is because I'm "old and set in my ways". Maybe it is because I'm just too familiar with IRC (while having never used TS nor even heard of the other two). Or maybe it is because I actually run servers for things (including IRC). But every time I hear "my Discord server" a very large part of my brain gets confused: it is a word which is so incorrectly-to-me being used--being neither a literal nor a metaphorical (via IRC) description of what is going on--that it causes me momentary confusion and then even a twinge of anger that this is what "server" means to people in 2022: a mere account on a service that isn't even themselves running a server for the user :(.