I changed my mind. Following a lot of people right away was a mistake.
While I still think you should follow a lot of people to have a good experience. Instead you should build your follow list from scratch. "A lot" will be relative. I have had ~750, I feel like I see mostly vacuous bullshit and I miss most of the notes I find interesting or insightful.
Maybe if I had simply been less discerning with my follows early on I would have found a better density for myself before curating.