For those not seeing notifications from the Challenges group, I just added a plugin that is supposed to auto-follow when you join the group. No idea why it didn't work that way already.
You might need to leave the group and join again, or you can go to the group's Activity tab and click the Follow button - when you do that you'll get notified of any updates across the group, whether it's a new challenge or post in the forum.
Awesome, thanks for the work and info!
I hope you don't take my grumpiness towards groups not too seriously 
No worries. It's just feedback. One can't do this for 20 years and have thin skin. I think groups are going to be a great way to navigate the site one day, but not in their current form. I'm notorious for releasing things in a less than ideal state in order to get feedback and letting it guide direction earlier. Groups feedback and observation has overall been very healthy for making decisions on the future of GDNet, your grumpy feedback included.
