I’d actually be surprised if LessWrong made many deconverts (though such people would be interesting to hear from, if they exist).
I’m personally familiar with one, who I believe now posts under a different username, whose deconversion process I was witness to online, although I think the discussion transcripts are no longer hosted online.
I’m personally familiar with one, who I believe now posts under a different username, whose deconversion process I was witness to online, although I think the discussion transcripts are no longer hosted online.