@liudr
For me it is very fatiguing to discuss with you. The main reason is that I do my research and challenge my ideas/words before I post an entry. I have the feeling you are not like this (see also the connecting the ground discussion)
Therefore I decided to only make 1 more remark and then stop being active on this discussion.
liudr:
If you think open source is only this quality then you have missed the whole GNU/linux project that is billions in numbers (on android phones and PCs) and very very complete and commercial quality.
I'm the author of the arduino eclipse plugin. Which is open source. Do you really think I think my plugin code (running on Linux, windows and mac) is of bad quality? Purely because I opened up the source code?
It looks to me that you have a problem making the distinction between a casus and a rule!
Therefore I strongly advise you to think more and to write less.
Jantje