uhybouy

No way of toggling images, no easy control of individual site settings, no popup/ad blocking. No way of editing the visited sites or bookmarks.

No because the customer would never use that bad address, none of their customers would ever use it as a home address for instance.

If they decided to post a letter to every address in the database then one of them would be undelivered - but that is probably not a problem given the efficency of the post service!

UK postcodes are equivalent to the 5+4 US zip codes. They list part of a street, typically 10-20 houses.

You also need it to generate a "addresses within X miles of Y" type list for a website.

And is very expensive and restrictive in how you can use it.

We licensed the Postal Address File (the list of official correct addresses for each house) and we had to add encryption to our product to stop people being able to extract the raw data from the code.

The same applies to Ordnance Survey map data - there are a lot of apps that aren't possible/easy in the UK because of the cost and licensing of the maps that the taxpayer paid for.

To stop me buying a legal copy and then immediately selling it as my own data. You don't have to tell the users that the data is there, simply generate a postcode that doesn't exist - then when a new postcode mapping product comes on the market, check for that postcode.

30 years experience as teacher/head of a $30K/year private school?

No - you aren't qualified to teach in a state school, and the teacher's union welcomes the decision.

http://en.wikipedia.org/wiki/Tristram_Jones-Parry

The 'legal source' would have to have the canary address - so you could tell if it was used.

Unless somebody thinks this was a deliberate leak to poison the free data - in which case it would have it's own canary address