I've had a look at the old source (3.0.2), and see where the default filter situation is: they are hard-coded into (phex/rules/DefaultSearchFilterRules.java)

Since not everyone will want to use these exact rules all the time, it might be better to remove this section in favor of putting them in a searchfilters.xml that is installed by default.

Similarly, chat is enabled by default, but there is no configuration option to change or save it.

I will poke around in the 3.0.2 code and see if I can find a solution to the chat and window position settings 'situations'. If I can, would it be acceptable for me to post the changes here? I've only done a little bit of Java programming, and never used Subversion, so I'm hesitant to risk messing things up for anyone else :-/