Your personal data isn't going anywhere. The server is only used for establishing the connection when clients are behind NATs (which in today's environment you usually always are). If I understand WebRTC correctly, once the link is established, all communication is peer to peer.
> If I understand WebRTC correctly, once the link is established, all communication is peer to peer.
In general, it's peer-to-peer, but for clients that can't communicate peer-to-peer for whatever reason (usually due to certain NATs), a relay server is used as an intermediary. To the user it's transparent, so they can't easily tell if it's peer-to-peer or not.
