Gear Tier 86 Questions. And about Bounty.

Now that we are more seasoned, I wonder if now Tier 81 is entirely meant for storing in the Arsenal, ala how those samurai armors are stored as shown in movies? Because once we break through 85 there's a whole set of 86 - is this not the one we are meant to finetune for the next 1.5 months? Or am I missing some more game mechanics - again?

About bounties, should I feel bad about infiltrating (invasion from Dark Souls) someone else's world to kill the bounty at 1g? Seems like he or she just missed the game mechanics of using one bounty coin to absolve oneself?