People have to understand one thing and that thing being is - raiding was always expensive business in vanilla wow.
However, just a peak in AH with slight usage of your IQ potential leads to conclusion that you must give up your entire life to devote yourself to a game in order to clear stuff.
As herbalist I see my profit here but as community member I see a problem.
Each PULL costs more than entire gear set in wotlk lol.
What happens if raid wipes few times?
How long will it take to farm up consumables again?
What happens if someone spends his entire free time farming up stuff and finds out that someone else/few other guys couldn't make it, thus leaving entire raid schedule postponed?
How long will it take until people start pointing fingers at each other?
Why do people have do that in firstplace? It's a game, it's meaningless!
I'm not saying this problem can cost Nost some population drop. Raiding guilds are here and they will stay, roots are layed, cores are made... maybe one or two guys will eventually give up and re-roll somewhere else but we won't see major population flop cuz of this.
However, overall experience and pleasure of raiders will suffer greatly.
With everything above stated I am still strongly against increasing spawn rates because it won't fix a problem for big part of population. You will still have to go to same spots and camp them even harder now to get that damn herb. because someone who has more time than you will be there all the damn time, preventing you to get it because... well... he can. "More herbs for mehh yeee

"
Adding nodes to a few more spots in same zone will actually spread farmers a bit and allow them to get blizzlike FEELING of a game by getting needed amount of herbs in reasonable amount of time.
It's no science. There is just enough herbs to make it work for 3k people online, but if Nost ever drops to 3k online thats gonna be considered low populated server by standards we see now.
The higher I go with my gathering skills the more problems I have skilling it up.
I don't even want to think how it feels to be responsible for preparing consumables for your guild raid.
And it shouldn't be. It shouldn't be faceroll-ish farm, but it shouldn't cost a damn fortune to just pull one or two bosses.