Melatos is some sort of authority on neutron stars and pulsars - looks like he's joining the 'hot topic' of calculating gravitational wave 'templates' for LIGO -

Coherent, multi-detector searches for continuous waves from nonaxisymmetric pulsars should be tailored accordingly.

.. ie according to the results of the calculation. Apparently non-symmetric pulsars are major candidates for GW sources -

The revival of interest in bumpy neutron stars as gravitational-wave sources started about the same time as for unstable modes, when in 1998 Lars Bildsten [3] suggested that electron capture could make large mountains on the accreting neutron stars in low-mass x-ray binaries. The density of a neutron star crust doesn't increase smoothly as you go down towards the core, but rather in discrete jumps. The result is layered like an onion: At the bottom of each layer, a proton in each nucleus captures an electron due to the intense pressure and turns into a neutron (inverse beta decay). This changes the chemical composition in the next layer and allows the now less positively charged nuclei to come closer together. Since the pressure of each electron capture falls strongly with rising temperature, a rain of hot accreting matter falling unevenly around the star can create buried mountains many layers deep.

(I haven't gone into the details of why these bumps should yield distinctive grav wave signatures, eg torque balancing, or Melatos' stuff either)