I don't really think it's necessary at this point, the costs are still relatively small and the way we've been doing it with minimal costs has seemed to still work out alright. That and in general when you look at the scope of where post rewards are going I don't think it hurts funding a project like POSH this way, many bigger stakeholders are even voting for hbd.funder which ends up stabilizing HBD and possibly returning a profit to the DHF so I tend to see this a bit of the same way.
If times change where we see a big influx of new users while price remains the same and or something happens to the amount delegated to ocdb where we wouldn't have a few extra daily votes to cast towards POSH then maybe that'd be a good time to consider trying the DHF.