The mods may feel this should be a separate thread. These are general comments, rather than ones specifically related to any of the above posts.
I do find that quite a number of posts are questions to which the answer could easily be found by a bit of googling. I realise that most posters are not as adept as I am at phrasing searches so as to get the most useful results from google (I had twenty years earning a living as a researcher, amongst other things). I also realise that even an entry on Wikipedia may be beyond some people’s understanding (often mine). So, my attitude is, have a go at finding the answer yourself, but if you can’t find the answer or understand it, then ask here.
I would also suggest that, if someone answers your question, you read their answer before posting a further question. Several times I have had people asking a follow-up question, to which the answer was in my earlier post. I may be a bit terse in my reply on these occasions, as you are wasting your time and mine by failing to read what I wrote.