Thanks for this. When I was newer, I used the busy tag because my post was about being busy. One of my friends informed me that busy was something else. I noticed that some people had lots of tags- I wondered about that. I wondered what Aceh was too- got the answer here. :) Resteemed- Take care.
Some tags like #busy changed over time actually. Shortly after Steemit launched there was no Busy the website, so the tag was primarily used as you described, for being busy. Same with Aceh. There were so few users from that area that the tag simply did not exist.