I'm amused by the above comment, and all the wild assumptions it makes.

Whereas a Bloom filter is relatively well known (in compsci circles), how many people know:

1) Who Wilt and Wither are? 2) What they "described back in 2003"?

Are they scientists? Did they wrote a paper in 2003 describing something similar? Have them or anybody else implemented anything based on their description?

The use of the word "just" especially, is, err, especially misguided.

Can you point to other implementations? If not then it's not "just an implementation", it's the FIRST FRIGGING IMPLEMENTATION!