What are those hive-engine shitcoins for?

In the past week I have been receiving, frequently, some shitcoins that have no price/value, I have no idea what they are, what are their purpose, nor how to use them, but I have been staking them, so if someone can explain to me I would be grateful.

Do they have any usage? And if so, HOW am I supposed to use them and use them? I know that STEM one is from a community, but do not know at all how useful or what for it is. The other ones even less.

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Does anyone know anything about them and can, please, clarify what are they for and how am I supposed to use?

There is a screenshot of my shit-hive-engine coins.

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