The OP seems a little off. To the other people that wonder about the banning. SE policy since 11 has been allowed bots and rmt to grow and multiply and sink their roots into the game and then pull them all out at once.

No proof that SE policy is better then the other policy. They have never discussed why they think this is a better system. Some speculation is it is the cheapest system to maintain with the least amount of accidental bans. Another idea is imagine the game design just in shards for crafting and they went up to thousands of gil per shard. This system also helps them maintain some poorer game designs (tin hat theory, but I liked it). It does nothing to help the current player farming some an item to sell or use to save gil.