I won't disagree that it has an influence, but there is a difference between an annoyance and a problem.My sample of two (worlds) isn’t much, I know. ;-) The answer is:
- In my Traders city it’s not a big problem to get shrooms for bismuth, but it’s a problem to get soap - fortunately when I post 3* trades for soap, they do get picked up (eventually).
- In my Constructs city I see a lot of bismuth, there is no problem to get it for my shrooms. The few trades asking for soap that I posted so far were taken quite quickly.
- Summary: in both worlds the easiest T6 goods to get is bismuth. And I tend to believe the Moonstone Gate does have a significant impact on this. Everyone who want CCs from Libraries needs Moonstone Gate(s).
That it takes a bit longer to get what you want but you get is is an annoyance.
Being unable to het what you need because noboday wants it is a problem.
I do not believe the moonstone gate is a "problem". thats my take on it.