If you go on the ulx menu, to utility and ban a player on the server for any amount of time, the echo that shows on the server and in the logs is that (console) was banned, rather than using the player's name. Also, oddly, 2 banned players have returned immediately but I need to investigate this more before posting it as a problem.
Here is an example of what happens with a ban from the ulx menu:
[17:06:07] Adminxyz banned (Console) permanently (troll)
The player had a name, not console.