I'd like to say I've never heard of it but you're the second person to ask.
Long story short: No. I don't think anyone here uses Discord. We're still stuck on ICQ and there's a TeamSpeak server (bark.interstate76.com) that no one seems to be using. If you're looking for anyone I'd start here, then try ICQ (or Astra), Facebook and then finally the TS sever. There's not a ton of active players left so it's really hit and miss.

As for tonight's event:
The Bruins are playing the Hurricanes at 4:00 Pacific. That means I'll probably be late getting to the challenge maps but early enough to host the main event. Look for me around 6:30.
I'll try and come up with something "new and fresh" though until we get everyone on 24fps we're still not good to go with flamer racing and/or combat. See you in about 8.5 hours!
See you on the roads...or not!
-Light'