Ok, as long as we’re not talking about anything real that can exist outside of a computer, that’s ok.
Yeah, otherwise there wouldn’t be problems 
Or at least vastly less
I’ll give you - partially - the perception aspect.
The speculation though? No… nope, definitely a no there, that’s a really miniscule aspect. The issues are real, existing and infallible, and I explained them to death by now, and you’ve read them to death by now.
Unlimited listing slots are one.
The necessity of progression for access and hence low-value flooding is another.
The intrinsic inflation because of a lack of taxation is a major one.
Also some more, but those are the biggest offenders for the specific point there.
If you can list endless amounts of items you take up space both for high-value and low-value items, hence removing the market for newcomers.
The need to list items causes the low-value ones generally to become flooded and hence immediately near ‘0’ gold, leaving only mid-value items to be listed if you want to make any sort of profit, even worse for newcomers to the market.
The newcomers being ‘stuck’ at the bottom of the barrel and highly equipped - or broken build - characters outperforming them by magnitudes hence causes the disparity of prices to steadily rise.
The end-result is that the market breaks by people not being able to progress through effort through it reliably (as more effort for the same result is needed day after day) and also at the upper end it breaks since the gold cap is reached and hence all hell breaks loose.