Wondering what can stop Splinterlands bots?

Wondering what can stop bots? As we know, they cannot be banned. So, what can solve the problem? There may be only one answer.
It’s a difficult subject (or maybe not) so I’ll do my best to keep it short and simple.

Each account must have a power to choose whether it wants to fight with bots or not.

Each account must document whether it is a bot or a real player in order to play.

So, people decide how they want to play this game.

What do you think about this?