It just means it found something that's either game related that it doesn't understand or in other cases it did find something, it's just their so an admin can pay more attention to those PBSS when using a human eye to look them over.
Damn beaten by surfy by that much. :P
Punkbuster Global bans are also game specific, in other words a Global ban in BF3 stops that GUID from entering BF3 servers where the same GUID in BF4 is free to play on BF4 servers, yes it's silly but how the system works.