Thanks Siddharth. If anyone has invested more time grappling with this thorny challenge than you, I haven’t met them yet :-)

Your response prompts more questions.

“It’s usually best” implies that sometimes it isn’t best. And often the persons programming the porting are distinct from those effected. Could you comment on that?

In the event that a score is in fact not ported, translating “reputation data” into a “reputation score” in the digital age is trivial, by which I mean instant and at zero marginal cost. So how does porting “reputation data” prevent porting of scores?

On the topic of scores, they are definitionally contextual. In football (soccer) the ball needs to go under the crossbar. In American football, it has to go over. Excelling at one of these sports cannot be interpreted as you excelling equally in the other. Reputation in human community is however transcontextual and analogue rather than digital. We develop a ‘feel’ for other people, when they live up to the trust we and others place in them; or don’t. Have you been able to square this circle?