I don't think there's any way to filter out How so? Do you mean that you don't believe a filter as I described is technically possible, or that it wouldn't so

I don't think there's any way to filter out How so? Do you mean that you don't believe a filter as I described is technically possible, or that it wouldn't solve the problem for you, or...? Not making a judgement as to whether it would be better than a private forum for you, merely responding to your comment that you wish there was a way to change HN.