At some point I wonder what I can do to mingle deeply in the discussion and contributions of this hard terms but one can not said something where you have no ideas. That's why I want to know how you get much familiar with all bitcoin technologies? What should I do?
It takes time but eventually you will sure get the hang of it if you stick around long enough.
Try this. Whenever you are less busy go through the threads one after the other. Click on the one that catches your attention the most and looks very interesting. Read the OP, followed by the comments. Try to do a little bit of interest search if you are confused and need more knowledge. Then go back to the thread and form your own opinion. It could either be a supporting argument or a counter-argument.