[quote=@LegendBegins]
<Snipped quote by Ellri>

You're ignoring the fact that it gives them the power to. This is the same situation as the thread deletion discussion; if a GM locks everyone out, they've essentially done the same, and that was already solved by restricting that power. I'm all for giving the GM powers to regulate, but highly against giving them the ability to restrict participation after they've already opened the floodgate.
[/quote]

And if you restrict that, stupid GMs will just find another way to break up the group. You can't fix stupid, stupid will always prevail.

This is a reasonable measure that allows GMs (the vast majority of whom are sane, stable people who won't arbitrarily kill a roleplay) to manage the list of active roleplayers. For some GMs, this can be mission critical. For others, they might prefer the earlier suggestion to opt out of the feature and let just anyone post in the IC (i.e. not manage a roleplayer list).