I don't understand what is your point.
a) bribing is more probable, happened by foreign country here this Sunday
b) it's a lot more dangerous for the entire society, it's not a vandal in your home, if anonymity is not implemented by voting process, then the local gang leader will force you (and all your neighbors) to vote for him, at the date he will tell you and you won't be able to do anything as he will be in power after these elections and will make possible to fake future elections.