The press won't hound you unless you give them a good reason. Yeah, they'll want some interviews in the first week, but then they'll go on to the next story. Charities can't really hound you unless you're stupid enough to keep putting your name in the phone book. History strongly suggests that for the most part criminals are only a problem if you go out of your way to make yourself a good target.
If you think you can win a significant jackpot and not have yourfriends and relatives notice that you've got the money you're probablydelusional, and almost certainly wrong. I certainly wouldn't bother paying 7% I didn't have to pay when it probably would't make much difference at all. If you lived in a state that had an income tax, and there wasn't a penalty for winning with an out of state ticket, then it would be a different story. JustX is right about going out of your way, though. If you're not going there anyway, you can figure on adding 30 to 60 cents per mile to the cost of your tickets.
What history has definitely shown us is that the worst enemys that winners have is almost always themselves. If you're not a danger to your wealth, there's no tmuch reason to worry about other people causing you problems.