I kinda have. I mean, for one post 14 months ago I listed 20 requests with what I thought were very detailed descriptions, and almost the entire list pretty much still stands as requests. #10 made it into Dorico 5 so that can be crossed off. #12 did for roots but not suffixes, and shortly after I made that list I figured out how to hack that myself for roots and suffixes with a doricolib file anyway, so I don't even use that D5 setting. (On the chord symbol side of things, I also have doricolib files for the missing chord symbol slash font settings, full modal names, missing 6/9 settings, etc. I've just given up on further chord symbol requests, and try to find ways to hack them in myself.) #16 sorta came in 4.2 or 4.3 after I wrote that list. You can edit your Preferences file to set the default mixer level to be 0, but that's oddly not actually a valid entry so it will be slightly changed whenever you hit Apply in the Preferences window.
I get it. The dev team is shorthanded, plus they have their own vision of where they are taking development. There's no point in implementing a specific request now if an entire feature is scheduled to be overhauled in the future, and obviously as users we aren't privy to that roadmap. I'm sure Daniel is glad to not hear me griping about chord symbol issues anymore LOL, but I've certainly written lots of issues up at length in the past. I could change that thread title to be Dorico 6 wishlist, modify those few things mentioned above, and just repost it, but that seems pointless.
I currently really wish they would get over their insistence that we don't need to be able to hide cautionary key sigs though. It's a new semester so I'm revising a lot of my old handouts, or creating new ones, and some of them use 50 or more hidden Codas just to hide cautionary key sigs, ugh! (The "official" Dorico way of using 50 Flows for this is much slower and not any better.)