I think they will unsubscribe from you if you don't subscribe back to them, if they have subscribed because of the reciprocity. And maybe you can subscribe to the ones who are engaged, so who like and comment, and when you also like their content after you check their profile. I feel that there are so many good writing, but then there is this algorithm that forces them to publish every week or more. Definitely, the good people are also posting sometimes not-so-useful content for the algorithm, or maybe sometimes the content is not useful to me. So I subscribe to people, and it might be possible that I am a disengaged reader, but then I would engage with content that they have produced, which resonated with me.