The Tibetan guru Padmasambhava alledgely said
I do not know, I do not have, I do not understand
The Buddha refused to answer questions on the fate of the universe and what happens after death. From this I would say that curosity about subjects unrelated to liberation isn't going to help you on the Buddhist path. A total fascination with your own mental experiences and the nature of reality might, wondering about the history of Buddhism probably won't. That said being a keen cyclist, building model planes and reading comics won't either. But I think there is something pericious about excessive curosity about Buddhist related things.
Within Buddhism there is the concept of near enemies that I find extremely useful. It's something that seems like it's helpful but really isn't. Sorrow might seem helpful when faced with suffering but it isn't. It's a near enemy of compassion. Being emotionally shut down is the near enemy of equanimity. I think that studying Buddhism can be the near enemy of practicing Buddhism. It looks like it, you can be convince it is it for years but it isn't it at all. It's an easy thing for me to be sucked into but it is really an obstacle to the path. Not true for everyone I'm sure but can be true for me.