Dick, there will certainly be a place for you in PLoS ONE.

We aren't intending to have any entry criteria for people who want to engage in discussions. We will want to know who you are and that you are a real person but more than that no.

Dick's ideas about defining users are great and we will be establishing a mechanism of rating for contributors to help users find the comments that will be useful to them. But after all, even patent clerks have useful things to say on occasion.