I see no reason to
These questions are interesting! In fact, I just awarded a bounty to aaron9eee for starting them up.
We have always had and allowed questions about lore, history of Subject X across editions, etc. This is no way different and I personally find them interesting.
If you don't like them, downvote if it makes sense for you. Otherwise, just ignore them.
Spacing them out a day apart I think is more than reasonable. It gives time for other questions to feed into the active queue and for new questions to come in on top in the new queue. But I don't see a reason to space it out further.