I intensely resent this as a debate tactic. Your ability to ask me to calm down is unrelated to what emotions I'm having, whether I'm expressing them appropriately, or whether they are justified; it's a fully general silencing tactic.

I'd add that it is also a general discrediting tactic. It seems to have been rather effective in this case. According to my analysis of the conversation your comments don't seem any more intemperate, mind-killed or confrontational---in some ways they seem less so. You expressed disagreement with reasoning on something that is significantly subjective. Yet there are indications that perception has been swayed such that you are considered to have been emotional and irrational while gwern is noble and to be honored for what seems to be just claiming the moral high ground and exploiting that advantage.