Need to implement a feature that hides arguments beneath the user's current threshold. Make a link that says e.g., "There are 1034 replies beneath your current threshold", which is clickable to reveal the shaded arguments.

I tried doing this on the server side, but failed. I think it needs to use the current li_hide and li_invisible classes and pass javascript a parent argumentId and it will turn all the child li_invisibles into li_shaded.