For a person/s who went to great lengths to maintain its identity unknown, using different types of English grammar as well as posting during different times without a particular pattern for all we know could all be intention.

For sure, Satoshi has planned this very carefully and meticulously so any of this would be irrelevant to work out. Satoshi did come up with a novel idea, so having his/their identity exposed could be a life threatening so absolutely he/they will go to extreme lengths to keep it all under wraps.