Well I got my results from Critter Creek Laboratory today and it turns out my Lc. Binotii is virused. It was one of the first three orchids I ever bought, so it has stayed in my collection because of its sentimental value. But I still have the two other 'first' orchids, so this one and its pot will be going directly into the garbage. Here is what made me suspect it:
oldest leaves:
the only two newer leaves which show symptoms:
--Stephen
oldest leaves:

the only two newer leaves which show symptoms:

--Stephen