I was trying to understand how it works, and it looks like there are 2 things at play here. First, UST can always be burnt for $1 worth of LUNA (determined based upon the price the oracle establishes). There appears to be some sort of rate limiter or something, and it's trading a few percentage points above this.
Secondarily, you need to transfer out of LUNA (via a bridge or some other mechanism) in order to sell the LUNA. The problem is that the network is.. quite busy, and from what I can gather, bridging is taking a few minutes to go through.
I seriously considered bridging back and forth between Terra and Ethereum, buying UST on Ethereum, transferring it to Terra, trading it for LUNA, transferring the LUNA back, and finally selling the LUNA for more UST. The potential delays in bridging expose me to more risk than I would have expected.
Secondarily, you need to transfer out of LUNA (via a bridge or some other mechanism) in order to sell the LUNA. The problem is that the network is.. quite busy, and from what I can gather, bridging is taking a few minutes to go through.
I seriously considered bridging back and forth between Terra and Ethereum, buying UST on Ethereum, transferring it to Terra, trading it for LUNA, transferring the LUNA back, and finally selling the LUNA for more UST. The potential delays in bridging expose me to more risk than I would have expected.