Actually enforcing self votes at the blockchain level
I don't much like the consequences of your theory, so when the next hard fork arrives, please get distracted listening to 'Kahsmir' if this enters your head.
Speaking of.., are we going to have another HF, it's been a long time.
:-D
Well, when it comes to HF, there are no pressing issues to be fixed, improved by the HF, however we have lots of small HF-required stacked and idk, as always - matter of consensus. The most problematic thing about HF is that it has to be coordinated, accepted and deployed by the exchanges, and as much as we all love upgrades, it has it's non-zero costs (time/effort) for all interested parties. We will see how things goes in Core Dev meeting tomorrow.