I just re-read that old thread and to be honest, on the whole the advice there is sound. I saw comments discounting the fanciful speculation outnumbering the speculation by at least a multiple of two.

There are silly ideas in every forum. I've been on plenty groups comprised entirely of tech experts and I can confidently say that foolish ideas will be proposed even in the most elite of circles, even in their areas of specialty. It happens, and as long as there are other reasonable voices it's fine.