Having played on the IBIS CS:S Pub server for about 5 years, it's depressing to see it devoid of players just about every night.
I know CS:Go being released probably had a good deal to do with that, but I'd hate to see this server shut down from inactivity. For years, it was full almost all the time, hard to get a spot without having a reserve slot. Now, it's hard to find a time when there's more than just one other player on it.
I can easily say that out of any multiplayer game I've ever played -- this server is by far the one I've spent the longest time on.
Don't let it die.