please include function postToStefansChat.

static double stefansChat_onLine_safe_delay = 1; // prohibits answering your own questions - TODO: improve

static void stefansChat_onLine_safe(fO f) {
  stefansChat_onLine(voidfunc(S text) {
    if (sysNow() > postToStefansChat_lastPost+toMS(stefansChat_onLine_safe_delay))
      callF(f, text);
  });
}