Can confirm --- was at FB. Scuba is awesome --- especially the surprisingly sophisticated statistical aggregations and the call-stack view that somebody added.
That was me. Or rather, I created a table with columns s0-s255 and built a primitive tree interface for a stacktrace dataset called Strobelight. Searching was literally if s0 == 'foo' || s1 == 'foo'... etc. This horrified the real Scuba devs enough to add proper vector type and search operators.
