Really? I totally thought that the reporter badges are reserved for the new iteration. With that said, we've definitely been waiting for a while *ehem* *forever* for the new software unfortunately. I've been seeing frequent commits and activity in general on the Epochtalk GitHub repo though, which is definitely a good thing I guess. Hopefully it wouldn't take longer than I'm expecting.
As far as I remember the reporter badges were meant to be implemented into the current forum software, and if I remember correctly theymos even stated he was hoping to do it by a certain time frame. Unless, I'm remembering incorrectly which is a possibility. I'll see if I can dig up the post that I'm thinking of.
In the meantime its definitely not mentioned as a "new forum software" feature, and was posted here in Meta, and not in the new forum software section which indicates it was for this iteration of the forum.
Thanks for all of the great suggestions! Makes me want to make several more badges for different things, though I don't know what they'd be for.
For the original purpose, my favorites are:

(300 good reports)

(1000 good reports)

(5000 good reports)

300 good reports

1000 good reports

5000 good reports

= 300 Good Reports (Bronze)

= 1000 Good Reports (Silver)

= 5000 Good Reports (Nuke)
I suspect that it will always be difficult to know what any mushroom cloud icon is if you don't already know, though.
I'll probably add it next week sometime. The icon can be changed easily either before or after it becomes public, though, so additional suggestions are welcome.
BTW, currently 195 users would have some icon, and only 9 users would have the highest-tier one.
So here is the quote I was thinking of. Theymos states that he was originally going to implement it a week after the quoted post which obviously we have now surpassed. I'm not sure the reasons, but I imagine more important things cropped up.