Other folks might reply differently but my honest response is - I'm not going to do that. When I've switch jobs I've never had a shortage of offers so if I saw that post it'd raise a flag for me and I'd be less inclined to follow up with that company - other really positive factors might swing it back or not. This means I might end up missing a great opportunity but job searches are never exhaustive and we all just try to do the best we can to evaluate different positions with our limited resources.