I had the same experience about a week ago. I was posting in steemit and seeing nothing. I finally found sportstalk and saw that my posts were reaching an audience(and were accruing sports tokens). Similar thing with D-Tube.

Weird thing I noticed. I can post a weekly article covering the same topic on the same day at the same time and get completely different results. I don't care about sports tokens so much(they will come with good content), but I'm curious if anyone has suggestions for increasing engagement.