Worst code I have seen has been written by self taught bioinformaticians. But, a lot of the time these scripts are used as one offs, to generate a result, then

Worst code I have seen has been written by self taught bioinformaticians. But, a lot of the time these scripts are used as one offs, to generate a result, then are done with, so quality doesn't need to be the same as with a server running 24/7.(Sadly the ones I had to fix were being run regularly).