I don't mind extensive feedback. If you feel that it's wrong to post it here, you can send me a mail to Naughty-Netherpunch@web.de
Thanks for the reminder, that the skilltree quest has to be changed. :D The entrance was indeed an option in the normal menu, but was recently moved to the "Fast Travel" screen. The choices in the options menu aren't meant to be the primary way to go to it. The skilltree quest wasn't changed yet to explain how it works now. My mistake.
I like the analogy with the mansion on a foundation of sand a lot, because that's pretty much what happened. The game was originally started as a hobby project over 10 years ago, and step by step became more serious. Due to this, there was no proper planning for things in the early stages of the development, which cause a lot of holes and headaches in the aftermath.
I'll definitely re-do or improve some existing content later, but my priority is currently on finishing the story and unfinished side stories, so I probably won't make any big changes to old content anytime soon.