Having a meaning behind the rule won't help those who overlook the rule.
The meaning is that I only speak and read in English and all my communities have the same rule.
I appreciate your apology, perhaps take a read of the rules on the community feed page and the posting guide also. I'm not asking you to post in English only though, it's your choice to do so or not; I do enforce the rules I have set in the communities I own though.
All the best.