As you may know, membership have an expiration date: on ZB currency, it has a 1 month validity duration.
For the very first members ( @vit, @Inso, @ManUtopiK and me), this means our join membership will expire on 8/1/2015 at 9:51, blockchain time, which is in less than a day.
If you do not renew your membership, you will be kicked from the community and no more be a member, until you join back. During that time, you won’t be able to certify people neither to co-create your Universal Dividend.
Note that you won’t be able to be reintegrated into the WoT, since you also need 3 signatures from current WoT members (your previous signatures from inso, vit and I are expired and cannot be renewed before 1 more month).