Yes but they aren't that special. I mean if you had an account name like yes, or L or something like that that's rare then that would be worth like 100$ but an account name with just random words from the dictionary would be worth 1-10$. Plus it matters what word it is from the dictionary.
Yeah, I don't even know what emulative means. It depends on the word that makes it worth money. And stats don't apply to the rarity of a name. That's a whole different ball game.
But I think if you get them to 40, it's be no more then 2-3 dollars
Those names are pretty elaborate but aren't usually considered "rare" because of their complexity. Basically: Not many people in the game know what those words mean so it's not rare. Also, getting fishing to 40 is a pretty easy task due to all the macro and bot work going around.
Honestly, any username made up now from a dictionary won't be worth much. The only names that will be sold for more are the ones that were made years ago.