>>1480527That was done on the fly.
The moment they opened the synthesis people were working on ways to circumvent the censoring by different prompts.
Because of the ununderstandable nature of AI models (not even the DALL-E people themselves can explain WHAT exactly the model will produce for input x) they are simple prompt-filters what to actually let through to the model.
These pics were created by using words like "mud" instead poo and such.
This then started a cat and mouse game that kinda still runs to this day.