Hypothetically speaking (of course) say that you wanted to do a Wikileaks-style exposé of some spatial data, without it being traceable back to yourself.
The data could be points, line and polygons (with attributes) in any common spatial format (shapefile, geodatabase, GeoJSON, etc).
What would be the best way to host it anonymously in an interactive web map? Where would it be hosted, and what software would you use?
You would then anonymously contact a journalist and send them the URL to your webmap (so it needs to be something interactive which a journalist could use in an online article, not just a JSON dump that only a geek could decipher).