Bit late blogging about this, but roshi sent out the Fedora 23 Call for Test Days at the end of June. We've been a bit light on Test Days for the last few cycles, focusing on release validation testing, but we'd love to put that right this time around! If you're interesting in having a Test Day for a package, feature, component, flavor or spin (lots of choices!) of Fedora you're involved with or interested in, please read the call and file a ticket on the QA trac. We can give you as much or as little help as you like in running the event! If you don't know much about Test Days, you can read up on the concept, read the guide to running one, and look at the Fedora 22 Test Days to see how a completed event looks.
Also just a small note - several people mentioned not being able to post comments on the site recently, I finally got around to fixing that - sorry. I'm using a fairly old theme, and something in its comment form handling has gotten broken by newer Wordpress versions; I've hacked around the problem for now, I hope. Let me know if you have any issues. I also replaced reCAPTCHA with a simpler system that doesn't involve foreign servers and free labor for Google's image matching system or whatever it is.