It says on the ET FAQ (http://www.evenbalance.com/index.php?page=faq-et.php)
By default, PunkBuster outputs to both the top of the playing screen and also to the game console. If you want to prevent PunkBuster from sending output to the playing screen, add [skipnotify] to the beginning of your pb_msgprefix setting (see the Settings section on our online PB for Players manual for more info). Output will only be sent to your game console in this case.
Fair enough, so I grabbed this from the RTCW players guide
pb_msgprefix [skipnotify]^5PunkBuster Client
which is meant to prevent spam (eg pb_plist) appearing in on the screen in the game, ie only writing it in to the console.
Problem is, it doesn’t work for me when I put it in my config… Doubting my scripting abilities I tried typing it directly in to the console in game… However when I try pb_plist I get
[skipnotify]Punkbuster Client: (etc etc etc)
And it still spams to the game screen as well as the console.
I wouldn’t mind so much if ET did its console spammage the same was as RTCW, problem is it’s got that stupid delay and it’s right in the middle of the screen. 
I thought it was fine in RTCW. :suspicious:
:banghead:
Anyone worked it out? Or am I just doing it totally wrong? :s