Dont add negative reenforcement for inactivity... But positive one will be more beneficial
I think inflation is even more negative for BTS shareholders and marketing BTS and BitAssets.
So for me it's a question of whether BTS shareholders prefer an annual inflation tax that dilutes them by circa 2% a year or do they prefer a tax they can completely avoid just by voting once per year? (And which doesn't effect BitAsset holders at all.)
It also helps address 2 big problems...
1. Voter Apathy (You will vote to avoid the fee)
2. BitAsset Adoption (People will hold BitAssets more with higher yield.)
BitShares possibly gets to become a No Inflation, Profitable DAC again which is more attractive to shareholders and as a backing for people holding BitAssets imo.