Is the interaction based on posts and comments? I'm not sure how much of an effect this week's WOTW would have had on overall engagement, although it's only be rolling for a few days. It'll be good to see the interaction stats next week to see how the full week was affected, or even from last Sunday to this coming Sunday.

I'm with @amr008 though, it would be good to see what the data is like for interactions directly in the #hive-150329 tag, that is a better look at dedicated POB engagement.