In the case of my diary, I feel that the discussion had been going on so long that there absolutely was an expression of strong interest from a large number of EuroTribbers, and that I was following a consensus decision in posting it.
In fact, I feel that so strongly that I'll say this: I doubt if any diary on ET has ever been posted with as much user demand behind it (even in choice of language, since the census showed that French was the next language down from English as a common denominator).
Those who say they were surprised by my diary, I'm sorry to say, were, imho, simply not paying attention to the discussions that were taking place, and had been since last summer.
And now I've had enough of this.
Also, before I saw your thread which made it obsolete, I planned a "census analysis" post. In there, I would have concluded that I think trying French in a few diaries would be worthwile, but for a truly big experiment, ET would still have to grow much more. *Lunatic*, n. One whose delusions are out of fashion.
So...long contentious threads to sometimes cause a person to reflect and make changes. "Once in awhile we get shown the light, in the strangest of places, if we look at it right" - Hunter/Garcia
(The actual phrases are manglings of the peasant complaint in Monty Python and the Holy Grail.)