Inflation is 100% vital to any functioning economy, real or virtual. The rate can be problematic, but that's a separate issue
Completely false, especially through the GTL the 10% deflationary pressure, which will now dominate the economy, will only serve to diminish the economy and disincentivize trading. Why bother buying now when your money will be worth more in the future?
Regardless there is absolutely zero reason they could not have given a few days notice.