Your wife shouldn't have sold items for ridiculously outrageous prices that only people who buy RMT'd gil would be able to afford. It sounds cliche, but crafters who did that were asking for it. I have 50 BSM, 50 ARM, and 50 GSM and I've never sold things for ridiculously high prices, have many millions of gil, and was not suspended despite having many millions of gil. Why? Because people didn't buy my goods with RMT gil because I didn't put them up at unreasonable prices.