While I agree with most of what you mentioned, sometimes there are very valid reasons for blocking completely, like yes/no modal dialogs, which could still be used maliciously. An example of why they are useful is if I try and close or navigate away from a page with unsaved data on it, it could be nice to block and prompt me to warn me that I might lose data. So even if alert was gone, there would still be ways to infinite loop lock. A better solution might be to add a forced timer, so that modal dialogs, including alert, could only be called every 5 seconds. Alternatively, there’s this for your own protection: http://www.tumuski.com/2008/05/javascript-alert-cancel-button/

If you’re interested, I’d be happy to help you. Pisg really is a nice tool, but I’d love to see it replaced with a more up to date and better equipped tool. It would be nice to have some of the nice features like in mIRCStats along with better date parsing, an easier parser format, and the improvements you’ve already mentioned. Also, I enjoy Ruby much more than Perl which is a bonus.