Now that technology is more developed, there are developers writing a better script in any game. My Singing Monster is no exception; upgraded versions are there with fewer loopholes.
Even with that, trying to cheat in the game is a little risky job to do. When found out by the company you will be banned from participating in the game entirely, which is really not a good thing. You will lose all the fun and the name that you acquired in the game. Stay calm and try to play the game clean, take it easy. Not earning more my favorite number of coins or diamonds on a day will never make you a loser in reality. You have better chance of winning the next day. So, don’t risk yourself over a game.