Its an interesting idea, certainly... might very well be worth implementing. Moving bases is already possible - it has been done several times in recent memory - I believe the restriction was primarily to prevent abuse. Certainly there would need to be a process, with clear and undertandable reasons, or the GMs will spend the rest of time doing miniscule adjustments to base positions. In meantime there is the sci-data workaround or you could demolish and rebuild, but a proper review method like SRPs, etc would be beneficial, I think. As long as its supporting RP, rather than hindering it, should be good. Renames have been implemented, why not this?