@otisbrown/steem-explosion

You obviously can't count. 2018 is not 3 years ago. In fact, last time he commented was a month ago.

@otisbrown/qbl01f

Also, he is @me-tarzan. So, last time he posted is actually 6 months ago.

@me-tarzan/to-steemit-community

Maybe you should try looking for that audience. I'm sure they are there somewhere too.