There's nothing inherently wrong with dopamine hits.
When people receive a like, a reply, a quote reply of their post, a boost or a zap these are all forms of acknowledgement that you are being not only seen, but someone found value in it. That's a good thing.
What's wrong is force feeding people content based on the following when the recipient isnt explicitly asking for it...
- who wrote it
- how many likes, zaps, replies it has
- the topic it's about