In UK you can fly under IFR in Class G any time you like with no written flight plan required. I do so fairly routinely if the weather precludes VMC and I do log pure IMC time, not that it matters much.
But flying under IFR in VMC in Class G is not the same as actual IMC and doesn't count towards anything, so what is the point of logging this psuedo "IFR" time? Is this done in the hope of befuddling a future employer into seeing a more "experienced" pilot?