Currently when a HC player hits level 20, 30, 40, 50, and 58 the server congratulates them with an announcement. This announcement lists off which challenges that player is doing. This is a nice feature to show off the people doing Slow and Steady and the other challenges. Seeing someone level up who is Slow and Steady, Exhaustion, Vagrant, and Boaring is cool and everyone goes nuts congratulating them. Its a really nice feature.
However when it comes to War Mode, I feel it should be excluded. A player could spend a lot of time and effort keeping their leveling away from busy areas, only for that announcement designed to congratulate them advertising that they can get ganked. At that point anyone can add them to their friends list and find their location very easily.
I don't participate in Warmode myself so I feel pretty unbiased and to me it seems like something that should be changed. Its simply too easy to stalk people via the friends list. The warmode players should need to at least be spotted by other players in the open world, not outted by an announcement.