I think you're misunderstanding what she's saying. She's not saying people should spend or not spend. She's saying if you don't enjoy playing the game anymore, or at the very least the company of the people you're playing with then you should quit playing because like any other app on your device, once you no longer enjoy it or need it it becomes useless & pointless to keep. But if you're only playing at this point because of the people you play with then soon that won't be enough either. She's not defending Gree nor bashing Gree. Just that you shouldn't play if you get absolutely no satisfaction or enjoyment of any kind by logging on each day.
Also, to lump the GS (the "volunteer" employees) in with the rest of the Gree employees isn't fair. The GS (some of them) work hard for the players & they do it for free. Just because Gree may not listen to what we or they have to say doesn't mean the GS aren't trying to make things better for us because some of them definitely are. The job they have is thankless & they do it for free. Give them alittle credit, they're fulfilling jobs that should be paid on their own time.