Useful Exercise?

[oshfdk]

Is anyone else playing around with this puzzle?

I get a headache just by looking at it, too much strain for my eyes 

I think I said this in another thread, but ultimately solving multivariate substitution ciphers may be extremely important for Voynichese, because it's highly likely that whatever method Voynichese uses, after cracking the surface of it, there will be a simple substitution task in the end.