Not in the slightest . The purpose of cloaking is not to hide from NPCs , which always know where you are , but may occasionally politely pretend not to , but to gain a damage bonus when you decloak . It does not matter if they see you beforehand , or why you decloaked , you still receive the damage bonus anyway . Cloaking is somewhat more effective in PvP , but again , works on a strictly Either they can see you anyway , or they simply can ' t basis . There ' s no purpose in trying to build for it , because , again , damage bonus is obtained regardless . Anyone specifically build for stealth detection as a concern will see you . Period . Anyone who doesn ' t , won ' t . The difference you gain is too small for it to be matter , since it does not matter whether they see you or not if you can get within 10 km , as you ' re already attacking them .