Hmmm... idk... Do you have a permit?

In all seriousness, as long as the communities are small and there is low traffic broader topics and questions are totally fine. Only if there is consensus that something is "too much" and repeated off topic will it make sense to split off and fragment.

The fediverse is friendly enough that you can try first, and if you're overstepping someone will politely ask you to not do it again.