Sophia, your comments are quite inaccurate.  Bakewell Tart did leave a message on Rob's page, but only because Rob is using the conventions about talk pages and user pages to make personal attacks on other editors.  He has been asked to remove these politely but just deletes the requests.  So, to refer to this as 'sarcasm' is a bit misleading. Don't you think that it was quite reasonable to refute an inaccurate statement, placed with the sole intention of causing offence?