All variations of the craftable Terratech harvesting tool line are now able to be placed in auction. Source
In 2015 Mindark released a so called "harvesting system" as something new, but it was already ingame and working in the year 2000. It got removed back then in 2001...and todays version of 2015 never recived any update. On top of it, it is totally boring and useless.
