Specific thread fixes
I do appreciate WA's effort to open private tickets, log into sites, make changes etc. However, it would go a long way for when private ticket is undertaken, that WA posts back to the public thread what the solution was. While I understand each situation is unique, by posting back to the public thread, there are clues and possible solutions that others can use to try to fix on their own.
For myself, when I have posted a public question, yet the answer is done in a private ticket, I try to post the solution.
I know it is an extra step for WA to post and WA is pretty busy. But if it can't be built in, then I encourage all posters to include the WA solution if WA is limited on time.
So, first option: WA posts to that thread on the solution.
Second option: Poster posts to the thread to the solution.