So I look at high score, calculate to see that score is based on seconds spent, decide to look in further and see that someone stalled the game with his score of 500000!
Today, I've learned that Boomerangs are not to be Underestimated. Got to round 97, on the Planet map, using only boomerangs (32 units) and a single boost tower. Had like 200'000 cash left that I couldn't spend since no more spot left.
I personally feel like those top comments are chosen depending on the rate per day. A Message that gets 100 + in a single day will instantly get on the best comments, while a message that got 1000 + in a month will be shown under, as it has a rate of 33+ per day.