>>Reason enough to not use it.
>
>Not for me! Its filtering capabilities, including regular expressions are very good.
>I used them extensively to categorize (pigeon hole) and to delete SPAMmers and other offenders at the gate. Clicking twice to open two instances is not a problem Craig. C'mon. How many instances of IE do you run concurrently? What's the diff?

I'm not talking about IE. The only place I use that for messaging is here on the UT and I only need one instance for that. IMO, it's far easier to scroll down a list of newsgroups than to launch multiple applications.