How can somebody who is blocked from (looking at your homepage) Docker Hub or Microsoft know that the reason they are blocked is that you have wrong data on them? How would they know to ask you? If they ask Docker Hub or Microsoft, they'll get funnelled into the "well it works for 90% of people" funnel.

Also the reason most IP information companies don't do this is the obvious risk of false information. I am currently in Somalia via a remote connection via Germany. Actually I'm not, but if I emailed you and said I was, how would you know?