[ryan-c]

They seem to only be collecting screen resolution, viewport size and whether ads are showing client side (tested by trying to load a file called ads.js that inserts a div into the dom). I assume server-side they combine this with user agent string and ip address.

[amorgan]

Screen resolution & viewport size aren't being used. They were added many months ago when we first started development.

[ryan-c]

So you're just doing UA + IP? Seems like that would be plenty for your use case.