name does not influence flake shape

[seanth]

https://www.youtube.com/watch?v=CRTZVk1Mt3Y describes how names can be used as seeds for forming snowflakes, but running snowflake.py with different names doesn't result in statistically different looking snowflakes. Is there an additional step when the seed string needs to be run through a different script and the output serves as the -e input?