Title says it all.

I miss features, that lets me check the players that are currently playing on my and on others servers. To be able to check their real steam account, to know if they got a previous VAC ban, and maybe know how often they've been on the server, or even if they're brand new visitors.

Keep in mind GT is limited by what the server includes in the query response.

Also keep in mind is once you claim a server you can see how often they have played on your server.