The 'Real Name' field shows where they're proxying in from. Like the normal riot.im "@username:matrix.org" or self-hosted "@username:theirserver.address.tld". I

The 'Real Name' field shows where they're proxying in from. Like the normal riot.im "@username:matrix.org" or self-hosted "@username:theirserver.address.tld". Is this an option that isn't the default for most matrix bridges/clients/whatever? I guess if it doesn't show in their realname field I wouldn't see it. But I imagine since the defaults seems to be what I described above the amount of users that turned that off will be fairly small and irrelevant.