I agree ladies...when a message or flirt comes my way about my profile I will always reply with a "Thanks" and if they have enough to spark my interest or curiousity then an accomanying "anything special of interest I can help you with?"
ET xox
I'll generally try to make a point of sending a thankyou note, but if it's a two word, no capitals, no punctuation effort along the lines of 'nice bits' it will really depend on how cheery I'm feeling.
That being said though, if someone actually opened with 'nice bits' I'd probably laugh and say hello.