Those things are already generally felonies, however, it's not that good deterrant, because it's something that's hard to prove, and they're used in situations where the vulnerable party would have to openly challenge it to report it. I mean, these are not theoretical considerations, all these things have a historical background on how election manipulations have been attempted and implemented worldwide over the centuries. Underneath pretty much every tiny detail in the ballot process there's some particular exploit that has happened and been prevented in future by that detail.