Late to the crafting game and just started trying to sell Exarchic/Aesthete on Diabolos a few weeks ago. There is a person who has been logged on for at least the last seven days, 24 hours each day. They have one of at least 80% of all Exarchic and Aesthete listed on their numerous retainers at any given time. No matter when I adjust my prices for any item I list that they also have the same item listed, they will reprice theirs 1g below mine within 15 minutes of my price update. Doesnt matter what time of the day, I have tried several random times over the 24 hours period - like clockwork, they will undercut in that 15 minute window. I have luckily sold a few things , but it is just luck that someone bought it when I fell into that small 15 minute window before the inevitable undercut.

Like all other bots, they are /busy all day and locked away in an inn room in Limsa. I've reported the player, but dont expect anything to happen.

I'm considering just trying to find something else to make some gil with, but it stinks that I even have to consider that because the bots make the market I want to sell in impossible.