can you imagine @sweetsssj dining in a fancy restaurant with a bodyguard by her side?
Yes, I certainly can. That's what rich people do. If she gets to that level, and it becomes a statistically relevant thing to do, she should.
As soon as the SP is powered down
So far, I have never powered down. Also, BTC isn't anonymous. Criminals have already been prosecuted because of the trail they leave on the blockchain. Clearly, if I or my family was harmed and anything happened to my Steemit account, that would be a clear path of evidence for people to follow which may lead to apprehending the criminal.
I think this might contribute to real life robbery schemes.
At what frequency? Statistically speaking, how likely do you think this is for a given account worth, say, over $100k?
Based on the statistics you envision, what precautions do you think are rational?
What I won't do is act in fear. Much of the mainstream media and government news today makes its money off selling fear. They use statistically irrational and irrelevant events to get whole groups of people to make irrational, fear-based decisions. I refuse to be a part of that.