This was exactly the point I made when discussing this issue with fellow guildmates.
Adjustments are being made throughout game progression that only hampers human players while trying to hamper the bots. However, unless you remove ALL gold rewards from quests, there will still be a legion of bots that will farm the crud out of anything that gives gold easily. And this isn’t the answer. It only gate-keeps the human player from being able to progress through the game as they should, given SO MANY things require actual GOLD to experience in the game.
Wanna make potions to sell? It costs gold to craft them and gold to list them on the market. By now, many mats have seen absolute rock-bottom prices.
Heck, I even made spreadsheets that factored the price of mats, the cost to craft, to the market price. Guess what, 90% of the crafted tradable recipes actually now make you LOSE gold. The raw mats? Worthless.
Fish used to be nearly 100g per stack of 100. The Natural Pearls used to be around 20-30 per 10. Redflesh Fish around the same. Oreha/Caldarr Solar Carp used to be 50-60 per 10. There used to be less than 10k stacks on the market.
Now look:
I fully expected the price of honing mats to drop. More humans progressing, more mats become available, prices go down. Simple supply and demand.
I fell in love with this game playing it via RU servers, where botting is something rarely ever seen. Prices were stable. You could adjust your activities to support selling things you receive doing activities you enjoy. Now you can only farm specific things (or sell store items for gold) in order for it to be worth ANYTHING worthwhile. I would have to sell 110 Redflesh Fish to afford to craft a cheaper item on my stronghold.
I would have to sell 10,000 stacks to make 100k silver, because silver is NOT easy to come by after you’ve done every island’s quests and ALL the side-quests. Repeating content dungeons doesn’t even get you anything, which was the cornerstone of farming dungeons in other MMOs like, say, World of Warcraft. The treasure maps are an insanely spare drop-rate, compared to say, FFXIV, where you could farm for treasure maps, do them with a party, and make a decent amount of non-cash currency.
As someone who loves finding ways to make gold/currency in any game through legitimate means (market arbitrage, old-fashioned farming, etc.), this terrifies me.
Can we please, please, please just implement mobile 2FA already? Yes, it can be thwarted but it is literally the best option we have to put a stop to the bleeding now before it takes a more long-term toll on the in-game economy.

