[southwindcg]

I don't [currently?] have a use case for this tool, but I love seeing existing tools made faster or more efficient.

[noamteyssier]

I think that it's a pretty common use case for text processing - I end up needing to use it a lot in bioinformatics where there is a lot of text processing.

It's great when you quickly need to see what the distribution of classes in an input stream is. This pops up all the time. Like measuring different types of log messages, counting the variants of a field in a csv, finding the most common word or substring, etc.

[southwindcg]

Oh, I meant me, personally, I don't have a use case for it. Without a doubt a lot of people are going to find this speed improvement valuable.