I did read the thread. I'm objecting to the idea that stacking lossless corrections onto lossy compression and then measuring the total is a good way to measure what we want to measure here, wrt human knowledge. It may be the best we have, but it's not good.
Why should we care what you think though? Im not being nasty, but unless you have a reputation in that field you have to give some cogent argument or its just some random possibly-uninformed opinion.
All the methods in this competition that are competitive DO use lossy compression.