The comments to the question tell you exactly why your question was closed. I'm not going to reiterate each, but the last comment hit it exactly which is half of your question is just soliciting discussion and nothing more and does not make sense from a Q&A perspective. The specific part I'm referring to is:
Independent of 1, please feel free to share personal experiences.
This alone just turns the whole question into a discussion that does not make sense on our site.
Another point I'll make which I state a lot on the meta is it's typically not a good format to say "X is open so Y was wrongly closed" and have that be the entire argument for reopening a question. There's a lot of factors that go into if a question is too broad or primarily opinion based including the exact scope and phrasing of the question.
The two other question while being subjective in exact nature could at least somewhat be answered within the confines in the site even if competing answers vary. Don't get me wrong they're not the best questions nor most objective we have on the site, but how they we asked and what they were limited to for the most part fits within our site.