Some mathematicians claim to derive weak lightlike singularity inside rotating black holes, without accounting for matter accretion. Some physicists claim that the lightlike singularity goes away once accretion is accounted for:

As long as a black hole continues to accrete, and thereby to generate ingoing and outgoing streams near the inner horizon, the inflationary growth rate remains finite, and there is no null singularity.

A proposition resolves to Yes, if by that date a publicly available mathematical proof shows that, within the theoretical framework of General Relativity, rotating black holes with accretion do not contain lightlike (null) singularity.