So many things in Blender has “been there for many many years”, but the discoverability is utter crap. Partly due to the shortcut heavy nightmare that Blender used to be, and partly due to UI inconsistency (that’s been pointed out so much in this thread).
Sorry, had to vent a bit, but I really, really hope that the developers put together a group which will pour over this thread and actually implement a majority of what’s been suggested. Because frankly, I’m a beginner and so far, I have mostly seen good suggestions, and I see the thread just passed the death by a 1000 cuts threshold. 
And sure, some suggestions may contradict what power users want or are used to… but those are the same people used to “right click select” anyway and they were wrong. 