Add a way to pipe several filters, or at least several "message" part
Use the pipe to always filters some unwanted messages and let the user define some simple "message" filter, without the need to define complex regex.
For example, I have a dozen of string, sometimes with wildcards or regex, that I want to filter most of the time. After that filtering, I would like to change easaly the "message" filter. Actually I have to define quite complex regex to remove the always unwanted messages and the variable parts.