If people see that a realm is rated as "boring", 9 times out of 10, they will just skip it.
Nothing wrong with that. If a realm consistently sucks, it'll die a slow death, and good riddance.
If people know that their rating of how boring their realm is will be known by people looking at their realm, 9 times out of 10, they will just rate it as "5 out of 5 stars, super-fun!" regardless of the truth.
I don't think so, because the people who look at it the most will be those who are inside the realm, who care about making the realm fun, such as the rulers and those in leadership positions.
And look, it's not just the actual score that matters, it's changes in the score over time. If my realm is consistently 5/5, and it goes to 3/5, then I know
something is rotten in the state of Denmark. Doesn't mean it's the ruler's fault necessarily, but if he's a good leader, he'll find out what the problem is and fix it.
You can't guarantee that players will vote with a certain mind. When I take the Pepsi challenge, they don't know if I'm telling the truth, or if I'm bull!@#$ting them because my friend works for Coke. When I rate films on Netflix, they don't know if I've seen the movie that I'm rating. Maybe I just gave it a 1 because Mel Gibson's a douche (I'm sure many people do that) or maybe I gave it 5/5 because there's a hot girl on the poster. Maybe I was just in a bad mood when I saw it, so I didn't fully appreciate it. That's the nature of statistics, though giving the numbers of votes helps. A 4/5 with 80 votes is a better statistical sample than a 5/5 with 3 votes. The more votes, the harder it is to manipulate.