@cloudcore 

This is pretty much something I studied about 30 years ago and have tried to implement in most of my communication. 

There are times ( probably less than 1% of my speech) when I just "speak my truth" straight without fear or favour, as that becomes essential at times to keep body mind and soul connected, but mostly I am disciplined about following these kinds of guidelines.

I am not talented at "I" statements or stating what I need, as I was raised with such  low level of voice and low level of expectation, I simply do not know what many people from non trauma backgrounds take for granted.

Unfortunately, it has not been enough to protect me or my family, as many people do not bother with that level of self reflection or consideration.

There are problems with open and closed groups and feedback loops that make make "Assertive Communication Styles" insufficient cure for all social ills.  Still its better than nothing, and I am left crossing my fingers for good luck.