BM - I'd appreciate it if you'd be specific and not generalise about my behaviour. I've been through all my posts and I can't find anything "not nice" (whether or not in nice tone), so I'm baffled and I'd like to know what it is.

If singling out is responding to what someone says, I guess I did. How else am I sposed to refer to something specific?

I could respond more, but like you, I am not here to get into wrangling; this feels unpleasant enough. That was not my purpose in my response to what you said.