I am already seeing people in here that need to be added to a block list due to their series of dead beating in the past.
How do I do it?

Coming soon...

Just a little food for thought. Has anyone ever in their life played any other game where you could block another user?

No, I have not.

I imagine the block list being a place for people who quit mid-game on a regular basis or who repeatedly sign up but don't show up come game time. Blocking people for other reasons seems silly as this IS a war game so the best place to get revenge or settle a score would be on the battlefield.

mostly for people that quit mid game, that makes up 90% the other 10% are those that do 3 on 1.

Block Player List now available!

Also for the non-anti-social, there is a Friends And Foes list as well.

Enjoy,
The BATTLE FORCES Team.

Mateusz, you seem overly controlling. I dare say this behaviour is prevalent in your day to day life as well. Loosen up man, or I'll target you in game until you block me for beating you too often.