Sentence:  He was quite active in the 1940's, vanished for a long while, then reappeared in the 1960's to put out lots of issues of this fanzine with the help of his wife, only to <WSD>gafiate</WSD> a second time as abruptly and totally as anyone ever has quit fandom. 
Meaning of the word marked with <WSD> tags:  To drop out of fandom community activities, with the implication of "getting a life".