The fact that much of the project is discussed over Discord should be damning enough...
Don't you think is damning that someone's concern of privacy is handwaved because the data was "volunteered, not collected" ?
And, as a user, many of the AI features are limited at best and factually incorrect at worst. I would only salvage FastGPT and Quick Answer; they summarize the first 4 or 5 relevant links and contrasting views (even if it bases the whole search on a single Reddit comment from 2017).
Funnily enough the Universal Summarizer and Discuss Docs are the least reliable.
All in all, I am conflicted because it seemed like a pristine service and it's getting clouded with time.