I don't think this is a bug, but I sure as hell am hoping it is. Earlier today after being anarchied, I checked to see how much I would make in tax collections. It was a small $52,000, but it was still enough to fight a war. I get on again a few minutes ago to find that I have been attacked four more times. Normally I wouldn't care, but I went to check my bill collection amount only to find that I am only going to receive $11,000. What. The. $%&@. This guy couldn't have done THAT much damage to me. (And from what I saw he didn't.)

How much tech, infra and land did he take?

Less than 5 tech (since I didn't buy much tech this round) and probably only a little bit of infrastructure.

He can also steal your chest... So if you had money in your chest a max of 20k could have been lost, meaning you misread your collection thinking the total+on hand money was the collection when in fact it was not.

Most likely just the result of war and user error.

I had $5 in my "chest". And no, as I said, I was still making $52,000 a day in anarchy.

Did they send you a delete alert? Sometimes that'll effect population happiness. And if you have 0 soldiers too

25 soldiers left and I only lost 2 soldiers. I think you mean defeat alert, and I don't remember.