vanilla ULX?
I may incorporate it as an account level analytic service. So they can see what there server is doing and when. But yes, a disclaimer for the data that isn't already public record.
IP, players, map and response time is all public to begin with.
ULX logs, installed addons and those types of things are not.
I don't want to save RCon credentials. So for the more in depth stuff, I would require a server module that would actually push to me.
On that module I would have the notice.