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Yea, there is a group of people on Hive called the Dreemers. It's a project by @dreemsteem
The dreemers curates posts daily from their website and your post was among those submitted on the site. That's why you are seeing us around commenting and using the tag so they can know there are special people on Hive.
You can check this out to understand more:

https://dreemport.com/port/profile