I can speak to that.
What will happen is that there will be people in the Canadian public who will write to the committee chair asking to appear. That will go to the clerk, and in the absence of having a motion, committee members are not necessarily apprised of who's doing that. It's helpful for committee members to know who wants to appear before the committee. It's also helpful when we have to suggest witnesses for a particular study to know who wants to appear and not to double up. If you know that someone has written the committee, you won't necessarily waste a spot of your own.
It's just more efficient and a courtesy to all committee members.