Maybe make it like names, you make a name you cant delete it for 30 days, so if you make a clan you cant leave it for 30 days, Just for the leader not for members, so members can leave at anytime, but the leader would have to stay in for 30 days before killing the clan, it would help reduce constant clan changing, like for example player newbie creates a clan [Ex.1] and gains 5 members, they get bored of there clan tag and just make a new clan [Ex.2], So i hope you understand what i mean, it will also make leaders be more serious rather then saying hey imma make a clan and see if its fun, if not ill leave a day or 2 later