How to get rid of persistent bot/hack users?

[Kyana]

Also on a side note, i think it's more like a sting operation. They wait and see if he is botting to sell gil, then who he sells it to, companies or players then who buys it, and once they have all the people, it's ban hammer for all. Instead of just 1. Maybe they let him go on to get buyers. Seeing as if they cancel his bot they get a new one, but if you ban buyers he loses clients. Then no matter how much gil he gets through botting if no one buys due to bans then he has no point in doing that anymore. They could also wait till they have a lot of gil/levels before banning so they feel the burn from the ban.

Leaving bots alone for over 2 Months? No, nothing will happen to these bots if SE did nothing by now.
How should a buyer know if the person who crafted that new piece of gear for him is a bot user?
AH sales are more obvious, if you see 50.000 shards sold from the same retainer.
But we are at a point already where you can't even buy materials from AH and be sure it's not from a bot.

The player I mentioned is lvl50 in all crafting and gathering classes and got 1 mage class to 50, no free company.
He probably used a bot to make millions (I highly doubt he farmed the Tomestones for the crafted ilvl70 gear + accessories + materia for his mage himself) and fill up his retainers with materials. => The damage is already done.

So, back on topic.
How should I report this player if he's doesn't use a bot now?