"It's pointless to run Tol Barad / Random battleground / weekly heroics."
Heard that one before? Even said it?
Well, if that's the case, my respect for you.
I've also heard it from people who believe I should hand over WoW-gold because I have so much. Dream on!
When you do mass-PvP (as in TB or BG), or when you run your weeklies, you amass a staggering amount of Honor and Justice Points respectively. This just happens, no matter if you're interested in it or not.
Now, watching someone capped at 4000 honor or JP, who's stating in a deadpan voice that they are unable to produce WoW-gold is a bit like watching a kid firmly in belief that a baby will never be able to walk because it's currently crawling.
Walk to the honor/JP trade goods vendor. Buy Heavenly Shards at 600 honor/JP each. Then walk over to the auction house and list them. In a worst case scenario you should make an extra 100 gold daily. It's not much, but it really didn't cost you any effort either.