Aiofe, I don't see any problem responding to a simple greeting. It doesn't bother me if someone is on here because they might be lonely and just want a bit of human interaction. You yourself must have been on here for lack of anything better to do, as do I. My DFTT refers to responding to the vicious, the carpers and the disrupters, (although I admit I have done just that on occasions), as it just gives them the attention they crave. I don't think that daisys' "hello" came under any of those categories, and wwould no more ignore her greeting than if she were passing me on the street.