For the first case you’re solving it by having an associatedAddress relation with one role=object and multiple role=address members. For the second case you have an associatedAddress relation with multiple role=object and one role=address members. But what would it mean to have multiple role=object and multiple role=address members? I don’t think it’s a good idea to have one solution to two different problems.

Why do you consider a cycle helmet to be extraneous? Do you consider seat belts and air-bags in cars extraneous too?

I’m fairly local to you, based in Wivenhoe. But I have no free time, and it’s a long while until I retire. I was adding houses and addresses and got almost half of Wivenhoe done before other commitments came up. I hope to start up again some time.

Source: http://www.colchester.gov.uk/CHttpHandler.ashx?id=2137&p=0

Most people encounter new tags by finding them in use. Someone who finds a way tagged as highway=secondary might be able to guess that there’s a hierarchy of roads and that this is the seconds best. Someone who finds pathtype=grade3 or pathtype=b2 would need to look it up to have any hope of understanding it.

A value on it’s own of grade3 would ask more questions that it answers. Is it from 1 to 10, 1 to 3, 0 to 3, etc.? Is 1 the best or 5 the best?

And I think the alternative proposal is even worse because you have two scales in one. If a1 is the best is the second best a2 or b1?

Are your pictures geotagged? They would make quite an addition to Mapillary.

That’s blowing it out of proportion. How Ordnance Survey creates and sells it’s maps has very little to do with what the packaging looks like.

They’re just running a competition instead of using stock photography. And I don’t see any stipulation that it has to be amateurs, professional photographers can also enter.

There is a prize, albeit not a rubbish one, so it’s hardly free work.

I’m not sure what the title has to do with the image. It’s obvious that changing the name on six relations is easier than changing it on 62 nodes. That being said, it would be even easier if it were just one relation.

What the image shows is addresses mapped as nodes in the middle of buildings. In my opinion the address should be on the building. If there were no buildings then address nodes would be fine but having both is confusing.