Interesting analysis, thank you @crokkon!

I'm still surprised at how few people overall use the tribes for posting and even tags/curation. And I'm even more surprised (this is something I check, occasionally) how many people use tribe tags in their original posts, but when you check their SteemEngine wallets it's quite evident that they have actually NEVER logged into their SteemEngine accounts... or maybe just once when it was brand new.

I think Appics is a bit of a special case (and statistical outlier) because it's a mobile app... it was created to use with your phone, so you'll have high usage because as soon as someone downloads the app, they are likely to use it for posting because... well, it works with your phone. I personally don't use it... feels like the "instagram-spam" of the Steem blockchain.