I havent really got into filter, it is what I heard from a friend, he mention that after chosen a specific gear like helmet, the affixes show up should be only match helmet or any other related gear part instead of showing all the affixes (parts of the affixes do not come with helmet in this case).
about pick-up affix shards, it is kinda waste of move, now we have to pick them up, and click the buttom in our inventory to store them, It seems meaningless to me and other friends.