Thank you very much for the response.
(just to give an example, it's literally impossible to donate over 8,000 troops to war bases in a single World War).
It is actually quite possible, as some of the other replies here are suggesting. This is not new, people have been doing this on previous donate events for a while now. You simply need to 'dump' the troops on war planning day from your base to be able to refill them.
To reach 8,000 sounds far fetched but it's not hard if you are dedicated.
We had between 3 and 6 players dumping troops from their war bases constantly at one time during the day. With the refresh delays end to end this could be every 30 seconds to be able to refill. You see the plus sign appear above a base and you fight to be the first to donate!
We have some french nation players with training blessings capable of crafting battle tanks every 13 seconds (so effectively infinite supply of troops, only limited by resources which lasted several hours after a quick farm). Players who were not French could not donate quite so quickly but still fast enough using MBTs and Machine Gunners.
So to get 8,000 for an average base size of 50 troop spaces that's 160 fills. In 3 hours of 1 fill per minute you've got more than 8,000.
The only reason I didn't get banned is because I had work and kids to eat up my day, otherwise I could quite easily have hit those numbers!
You have introduced an exciting new mechanism with great rewards and players are keen to do anything they (legitimately) can to win. I'm sure it's surprising the lengths players will go to, and I know that some of my friends feel that they went overboard yesterday dumping and refilling, but that's what competitive and ever so slightly addicted players do
My suggestion would be to make war base donations not count towards these goals in future, I don't think anyone really _wants_ to be doing it - it's just to compete and keep up.
Also we're all really appreciative of efforts to clamp down on cheating - we hate it and like affirmative action. But I think in this case you underestimated the community and got it wrong.