I totally agree with this.

Not only will 3 weeks of the Grotto map break the economy. But it only really benefits the bots on game who from the get go of the event start their bot programs and will use their PC to farm this map non stop for 3 whole weeks. The amount of gold they will benefit from this event is immense, it is also very easy to tell who is botting because they start flooding the market with the rare vanity drops from the Toy Man boss, which is very hard and difficult to drop considering the drop rate for these items are low and rare.

The only problem with nerfing Grotto map is it a map that will benefit the new players of the game and give them an opportunity to gain some gold , however they do not have the best gold loot gears, or auto gold loot elixirs or even know the best and most efficient way to run the map.

So it really is catch 22