I don't think that a long post is always a good content, and is not curated enough even if it is of good quality.
Something similar happened to me; worldmappin blacklisted my account without a certain reason and without letting me know. When I asked the reason, they arrogantly told me "Go and find yourself a community!" A so-called admin or someone else here can easily blame you againts others.
I have been here more than 7 years and I have stopped posting for these reasons. I daily do manual curation and some comments. I am afraid that HIVE seems to have been in the hands of some ones and going to be like Steemit.
I will wait and see for a while, if nothing changes, I will go on like this or power down and leave...