The thread was about lenses that possess this quality, not about trying to mimic it in post processing which I certainly don't want to be wasting time doing, but it was good to include it for discussion and learning.
I know the discussion has branches of why it possibly happens and why some think you can do it in PP with masks, clarity and blur. Whether you are convinced of this or not is up to you but as a former RAW only guy who now has a camera which has superior jpegs I now only want to PP when really necessary, hence I wanted to find out which lens has it.
I'll try and find £1989 down the back of the sofa for that used dented 50 Summilux f1.4 on Wex website