You actually makes some good point but to me rotating merits source is not that easier as rotating DT's over here, what I mean in essence is that DTs could be that possible to do since they often have votes over the time compared with merits source. There are several merits source application pending and theymos not adding more, (thanks to fillippone for his consistencies as he is the only merits source doing wonders and helping lot of people in this forum). While to me any merits source who is not active for the period of 183-365 days should be automatically removed from merits source as this people are not in anyway helping the forum or members to grow. Just like what he did by removing those inactive moderators/admins, such should be implemented to those who are not active with their merits source roles.