Now I understand after reading some part of your posting. That is so infornative, this is what I have been looking for. Many thanks @arcange

As you can see, is it very easy to raise your reputation at the beginning, but the higher your reputation, the harder it is to increase it. In fact, each time you want to increase your reputation of 1 point, it is ten times harder!

The main effect is that a reputation of 60 is 10 times stronger than the reputation of 59.
It is the same for a negative reputation. A reputation of -8 is 10 times weaker than the reputation of -7.

People with a low reputation cannot harm the reputation of someone with a strong reputation.

This explains why creating a bot that systematically flags other posts is useless, unless the bot has a high reputation, something that will be hard to achieve for a “flag bot”. In no time, the bot’s reputation will be ruined and it will become harmless.

There is no lower or upper limit to reputation.