I have never used Drupal before, but I get to know a bit of it when Drupal was one of the candidates to be choosen as our corporate CMS (at the end, the company chose to use a proprietary and EXPENSIVE solution, unfortunately).
One thing which I didn't like about Drupal, was that there wasn't automated unit tests in its core. I believe having a test coverage is a great indicator of the robustness of a solution (and it makes things easier to improve and optimize).
Now, is Drupal 8 being developed using automated tests?
In the post "An Introduction to Entities", I read that, "Bundles are an implementation of an Entity Type". And every time the word "bundle" was mentioned, the word "subtypes", enclosed in parentheses also followed. What I don't get is why Bundles is named Bundles if it obviously means something else (Entity Subtypes). As someone who is just starting with D7, I think the name Bundle is confusing and misleading.
I recently changed some very very old postings of mine (dealing with drupal 4.7 …). For various and severe reasons. Unfortunately, a couple of days later I noticed that some kind of "forum serif" re-activated the original versions. Additonally, my corresponding account has been blocked. Did you ever noticed that in this case there is absolutely no way to contact any administrator? That's worse than facebook!