Proof of SteamID can be given through the following methods:
Typing status in console and taking a screenshot of it.
SteamID 64. at the top of a recording.
Taking a screenshot of when a player leaves the server as there'll be a message in chat with their name associated SteamID.

Proof of SteamID can be given through the following methods: Typing status in console and taking a screenshot of it. SteamID 64. at the top of a recording. Taking a screenshot of when a player leaves the server as there'll be a message in chat with their name associated SteamID.