First time hitting gold cap

So i started of this expac with 1m gold. I realised on EA that skinning majestics beasts was the real deal. So i made about 10 skinners averaging 600k per day. Made about 3m of doing that. Then the prices crashed so the time wasnt really worth it anymore. When I did my last skinning run a friend of mine and me realised we got huge exp from one of the max lvl campaign quests next to where you spawn umbralfang in voidstorm. Anyway, we tried doing this ourselves and realised we could make gold of it boosting ppl. One guy had to be lvl 90 and make it to that part of the campaign and if you are in a raid group the quest doesnt complete and the mobs just keep on spawning(similar to the ring quest xp farm). At peak we were averaging 9m exp per hour which means 80-90 in about 30min. At most it took about 1.5h to lvl(depends on how populated the area was, xp went down if more than 5ppl hit the mobs). I made about 7mil from doing this in probably 4-5hours of active gameplay so now I reached my first goldcap. Sadly, alot of ppl stole our strat and now its hotfixed. And sorry to all the ppl who did the campaign and couldnt finish their quest because of all the mobs.

TLDR

I lvl boosted 80-90 for 100k per lvl in voidstorm, made 7m in 4hours and reached goldcap