You could “sequester” the jury by making them promise not to read the non-courtroom threads until the jury had delivered a verdict. You could also have a norm that disputants would not comment in other threads while trial was ongoing. Not having the disputants in the non-courtroom thread would probably slow its velocity down considerably. You could even hide the courtroom thread from non-participants until the trial was over. That’s not a complete answer, but would probably help some.
You could “sequester” the jury by making them promise not to read the non-courtroom threads until the jury had delivered a verdict. You could also have a norm that disputants would not comment in other threads while trial was ongoing. Not having the disputants in the non-courtroom thread would probably slow its velocity down considerably. You could even hide the courtroom thread from non-participants until the trial was over. That’s not a complete answer, but would probably help some.