A GB licence holder must immediately notify the DVLA of any change of address, this is stipulated in section 99(4) of The Road Traffic Act 1988. Yet, under Section 99A(3), EU driving licence holders can drive in the UK for as long as their licence remains valid. As a result, their registered address can easily be years out of date. The extent of the anomaly is illustrated by the fact that non-EU licence holders have a maximum of 12 months to exchange their licence for a GB one.
We believe the issue has long been problematic, read more here