The last check on power is murdering politicians in their homes? I beg to differ. If the situation is so bad that violence is truly necessary, the last check is an organized revolution, not an assassination. If the figure is a genuine dictator and important enough to have real power, they would have extensive security surrounding their home anyways. This fantasy of assassinating a would-be Putin or whatever does not justify exposing the addresses of city councilmen or judges or whatever random public servant somebody wants to kill over their grievances.
> The last check on power is murdering politicians in their homes?
You said murder, but there are plenty of valid reasons that the public should know who holds positions of power and where they live that don't involve violence of any kind.
Protest is an essential freedom we have and it's perfectly valid to do it outside of the homes of those we have put in power. It's also useful to have that information when investigating fraud and corruption.