By modifying the equipset packet, you can equip the same piece of armor on multiple (abnormal) slots and receive the bonus multiple times.
It appears many people are using this to equip items such as kupo shield or crafting torques to receive a huge amount of excess skill and break tiers that shouldn't be possible.
This is why the forums are flooded with HQ threads selling impossible amounts of high value items.
I wouldn't recommend doing this if you haven't already since I'm making daily reports to the STF and GMs and it will put your account at risk. However, increasing exposure to the information lights a fire under SE's ass and motivates them to fix it sooner.