I can see using "we" if your part of a research team developing novel treatments to destroy L-forms of Borrelia Burgdorferi...but in this context?
"we" can be used in any context within a scientific publication. I've written texts about work that I did completely by myself and still used "we".
People have speculated that Satoshi had a scientific background and the use of "we" instead of "I" is completely consistent with that and Satoshi being a single person.