Sometimes they downvote your content without any reason and that down voting is performed by a group because of which an individual person cannot prove himself right there this is one of the bad think about hive and steemit also..
I join this platform today and I used to regularly post my blogs on hive community I am not getting that much on my post but that's okay because I am initial face and it will take some time for me to learn the things
I am feeling really sad for you because the same thing is happen with one of my account which named spydo and at present I use that account in curation trail for promoting the best content with India_united ,OCD,CCH and different type of reputed community and after that also all the blogs which I post from that account is down voted
@drutter