Now, for the specific cases. I just read this meta thread and subsequently logged in to read the comment. (For various reasons I am rarely logged in on MO lately, but passively read this and that and most of all meta but then do not notice comments; so in my case to ask here was perfect.) Sorry for the delay, thanks for asking, and glad to hear my answer was helpful.
I would prefer not to be acknowledged under my real name for MO activity. Somehow I would enjoy if 'quid' was acknowledged. However, please do not feel oblidged to do this as I can see why somebody could find this 'silly' for a paper; in that case you could just abstractly acknowledge MathOverflow.
Thanks again for asking and the good news.
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