Great question!!
I was one who stopped posting.
I started Steemit in October 2016 and was posting until January 2017. I lost interest. It wasn't anyone or anything that did it, well maybe a bit of bad advice. So I had a hiatus of about 8 months.
I even completely powered down to zero.
It was extremely difficult starting again. I had to reconnect with some people I hadn't spoken to in 8 months. Some weren't interested but a few were, thankfully.
What I found most difficult was starting with a high rep but having no voting slide bar and no voting power. I may as well have been 25 and new.
It was slow going but I am doing okay now and have learned a valuable lesson. I pace myself.
I don't get too upset when someone doesn't visit my post every time I post. I take criticism constructively believing people mean well to help me succeed.
I learn from everyone as this is a community.
When friends disappear and take up friendships with others I am okay with that. Different interests attract different people. This happens here.
When we first start out we cling to anyone who will talk to us and encourage us....then we move on to those who are in the same lane.
The other part is what you touched on - the time zone differences. This can make a huge difference with your followers. I follow a number of people who are 7 hours ahead of me and I don't worry too much about when I vote for them - re curation rewards - ie getting in at the right time. I just enjoy their posts and the interaction I have with them.
So in answer to your question, I think I am a dabbler. I am a consistent dabbler.