What might be a potential problem with the code (from the take-home assessment)?
Sigiloso
Listed off all the "gotchas" that one might point out in a PR. They were looking for "I'm not using a stream to read in the CSV file", although a stream doesn't provide any value in this case (e.g. preventing an OutOfMemory Exception) since the program needs to GroupBy across the entire collection to do what it needs to do.