Questions about the site, a listing, the data or advertising all go to one address: hello@rustservertrends.org.
Email: hello@rustservertrends.org
A server looks wrong: Most of what you see is published by the server itself: its name, description, tags, wipe schedule and header image. Change it at the source and the site follows within five minutes, since the readings refresh at that interval. If a wipe was missed or a value stays wrong after that, email the server's address in ip:port form and say what you expected to see.
Advertising: The advertising page sets out what is available. Email with what you have in mind.
Using the data: The figures on the site are free to use in a project. Ask first, and we can point you at something better than reading it off the pages.
Before you write: the about page explains how readings are collected. The server list shows every public server the site records.