Other than a site teaching how to do backflips, I really don't see another development option. Could be a brandable, but the .org doesn't really match in this case.
You said "full on domain flipping course" so backflip.org doesn't really make sense to me personally for that purpose. Flipping and backflipping, imo don't relate with each other so well- it's awkward. It makes more sense to use the name for gymnastics instead- and that's also stretching it.
You would be turning backflip.org into a brandable, and I'm personally not a fan of that unless you have a huge marketing budget.
Could be a local buy, sell and trade site for a small town/community.
Gymnast forum.
Domain flipping education site.
Lots of options
Sorry to hear Kidd Wunder, maybe it turned out for the best-- I don't really know the reason he was suspended though. You can try re listing it though and get more than $200.
Sad part is first bidder agreed to $1500 then got suspended haha.
Site just about back flips is kinda ehh.
What about back flips and hit Gen Y up with a dose of parkour?
I'm generation y and parkour is sooo....mid 2000's. lol
I'm hoping you did some snooping around before you accepted him as a bidder?...if the buyer had transactions under his belt, just go into his profile and check his past listings, both buying/selling...even if they are suspended. Whois the domains and snag his email. While you may not have full access to their account info (email, yadda, yadda), you can hope for a past transaction.
That would make it nearly 2500, a year we're not going to see, ever.
It's not rare for people to sign up the same day they see a domain they like and buy it without fail!