I see a lot of people saying why not to have comments, and they are all fair things to say. But in counterpoint I'll say that sometimes I send a technical corr

I see a lot of people saying why not to have comments, and they are all fair things to say. But in counterpoint I'll say that sometimes I send a technical correction, or other such friendly remark, that I think the blogger gains by. But of course I agree that the great majority of comments that you see are very discouraging.