In fact, I commit to causing a lot of headaches for LessWrong and you if you try to delete my account without a month's warning. (Causing headaches for you will be limited to the channel of LessWrong—I'm not threatening you with outside-LessWrong influences in any way. I swear to that.)

My immediate response was to think "Ahh, screw that. Ban!" Given the caveat in the parenthesis however, his declaration gives only a tiny amount of information along the "threat to do harm" front. I more or less expect people banned from a site to be inclined to do detrimental things to that site if they can. That being the case, this threat falls just short of stating the obvious and so I can abandon the initial outraged defiance.