It's not making much gil to me, either. I make way more than that on my level cap characters. It's an example of how even minimal effort selling a few low level items can profit in a market you claim has no profit opportunities due to bots.
Just because you think the profit amounts are too small to be worth your personal time and effort doesn't mean the profit opportunties don't exist.
I went and looked at several random listings on the Mateus marketboard. I only found listings by the player you mentioned on about a third of what I checked. It was usually a single listing priced at least 50% above what other players had those items listed for. Maybe something happened in the past but I'm not seeing how that player is a current problem based on what I saw tonight. There were a couple of other names I saw repeated that looked far more likely to be marketboard manipulators. I still saw profit opportunities for those who were willing to work for them.
You're not going to get the community to support a request to have market botters banned when the argument is "I used to make 20 million gil a day but now I can only make 5 million a day due to the bots! It's an outrage that needs to be stopped!".
Most players think having 5 million gil is being rich and having 20 million gil at one time is a dream that will never happen. Instead of supporting you, they're more likely to respond "He he he, tough luck, you can't rip us off anymore".
I want to see the bots gone. It's not because they've ruined crafting and gathering because they haven't. It's not because I'm making less profit from selling things on the marketboard because I've got more than enough gil to buy the things I want and any profit is still profit. I'll switch what I'm selling when the profit on certain items dries up.
I want to see them gone because it's cheating. You earned your gil honestly through game play as intended. You deserve to have it. The botters did not earn their gil honestly through game play as intended. They should not have it.
No game should turn a blind eye and allow those who cheat to continue to profit. Allowing it to continue just encourages more players to cheat and that's bad news.