Companion Gathering bug : SWTOR Discussions

Not sure how exploitable this is, but if you have two characters with separate gathering skills (say one has Underworld trading, one has Slicing) if you send your crew on a mission for a skill the other one does not have, then switch characters, you will see that skill on your other character.

For example, Character 1 has companions with slicing. Character 2 does not have this gathering skill. If Character 1 sends his crew on a slicing mission, then swaps to character 2, slicing will show up as a skill for character 2 (it will show 4 skills). In addition, this character can now see all Sliceable nodes on the map in his area (although, when you go to harvest, it will display a note similar to if you attempted to harvest a node higher than your skill).

its a bug getting fixed in the next patch and it has no benefit. Just display bugs which don't do anything.