Sounds like a "goodbye" thread from JWN or any other discussion board.
"I'm done posting for good. I don't have time anymore and I've done all I can to show you all how much I know. But maybe someday, if enough people miss me and beg me I'll be back!!!"
<three days later>
"The outpouring of love and support was so overwhelming that I just HAD TO come back. Thank you all SO MUCH!!!"