I have the feeling, that you have nothing to do and you go around of meaningless stuff. Remove the group, so what. What exactly do you expect from this action? Most ex-staffers have seen the idiotic things that run on the background. Don't hope that anyone will start trying again, if that's your expectation.
You run a forum about a game which is dead, even the official l2 community is about to completely dissappear. My suggestion would be to focus on stuff that will matter. If you have nothing clever to do, do nothing. Playing with the membergroup page will earn noone's interest.