thank you very much for the feedback!!
We know that right clicking for placing buildings isn't very intuitive, we just couldn't assign it to left click as it created some issues with the game lol. But we'll fix it in the next update for sure!
And yeah as far as I know the player shouldn't keep miners when selling those buildings, so thanks for pointing that out.
I'm really glad you enjoyed it, and thanks again for leaving such a great feedback. Stay tuned for the updates, there's a lot coming!!