People should not deceive themselves to think they can conduct a research that could let them know about Satoshi Nakamoto. Satoshi can be a group of individual which is what I am thinking. Sotishi can be a single person. But to know this, it would be when Satoshi proves himself to be Satoshi. I do not know why people are so much concerned to know who Satoshi is when Satoshi do not want to let people know him which is one of the reasons bitcoin is different from all other coins.
I agree with you to some extent, making research on Satoshi is like making research on bitcoin decentralized digital currency which is not possible. Yes Satoshi Nakamoto could be a group of programmers because of his thread he made mentioned of "we" and that is a plural subject pronoun. That not withstanding, people are free to make research on Satoshi Nakamoto even though they couldn't get the real identity of him, trial and error approach should be conducted on him. Till date people are making research on Adam and Eve and what kind of Apple did Eve ate. Therefore, research is endless. As for me I believed Satoshi Nakamoto is from America not British. One thing I discovered in the wisdom of the brilliant people is that if they want to do important thing they did in another land where the IP address of the location will be shown.