I think that such a question should be mandatory.*
Given that TeX aims to be as bug-free as possible, fixes are nowadays rather on the esoteric side, mostly about obscure corner cases, but who knows?
And surely, having a place where to look for “official” information, beside the usual TUGboat channel, would be handy.
* I don't think I'll ask it, though. 😉
The Q&A format of the Stack network doesn't lend itself well to a standalone post (SO tried this with the documentation experiment; it didn't go well). In that sense, no, you should not post your example.
But there is an alternative. You can transform your post into a true Q&A. What is the trickiest part of the table? You can create the rest of ...
To add to the answer of Teepeemm (with which I agree): to help future visitors to the site the most, it is important that a Q&A-pair focuses on a single aspect or issue to be solved.
We get many questions along the lines of "how do I draw this complex table", some with a code attempt and some without, but even if the question already contains a ...
An old question may have existing answers with many votes already, so a new answer that's more up-to-date and even more recommendable would start with less votes. It may get better over time, commenting and adding a bounty on the question may help.
However, you could post your concerns and recommendations to an existing answer with the suggestion to edit it: ...
There's a list of questions in your profile:
There's one direct link which works for all users: https://tex.stackexchange.com/users/current?tab=questions. It will automatically redirect to your own questions. Alternatively, you can combine the two search options user:me and is:q to search for 'posts by yourself' which 'are questions'; this might be useful ...
You're right, line spacing has been increased as mentioned here on Meta Stack Exchange: New post formatting
Many people don't like the change, and posts like Please revert the line-height change! and this answer are very popular right now.
I put a disposition of the community one site
https://www.screentogif.com/ that I have just found yesterday to record the screen, webcam and sketchboard and convert it to .gif.
Here there is the screenshot with the different languages.