This also increases the importance of the rankings in the clan, since it’s so hard to get in and you can’t rejoin after you left. This makes members appreciative of their own post.

You can give the aforementioned “traitor” a chance, but this time, let her know, if she leaves or commit any treason towards the clan, she will be kicked and never let back. If your other members who liked her left the clan, then let them leave. This proved that the member is in your clan for her, and not for the clan itself. So it wouldn’t hurt to let them quit. Broadcast the act of treason on your clan website and forums. This will ensure the other members knows what happened and not fall into the traps she laid out for the other members.

Was she just untrustworthy in the fact that she left your clan, or did she attempt to incite a rebellion and get people to leave with her?

If she just left without causing any trouble, then I would accept her back into the clan, not make her a leader, but keep a close eye on her to make sure her loyalty is with you now and that she isn’t speaking badly about your clan at all. If after time you believe she’s going to stick around, then perhaps give her a trial run as a leader again. You can even tell her that if she helps contribute to the clan for a period of say, 3 months, then you’d be happy to reconsider her in her former position.

If she incited a rebellion in the past, I’d normally just remove her period. But the fact that other members like her makes things a little more difficult. If this is the case then keep a very close eye on her. The moment she speaks badly about the clan, or you believe she’d incite any form of rebellion again, remove her immediately.

Hope this helps.