I'd rather post in an active community such as homeschooling than be perfectly spot-on for a topic of an otherwise dead community.

I can only admit, that activity in History community is about zero. But that does not provide a legit reason.

On the other hand, the subject of your intresting posts is pretty differ from Home'edding community topic. I used to see mods press 'mute' button in such cases. (Which frustrates me a lot -- if it is my post...) 😳