First of all, a big thank you to Bogumil, Peter, Milan, Jacob, and all others that have been working on DataFrames.jl and related packages.
For what it’s worth, I also still feel that it takes me too long (in terms of time to code and characters to type) to perform routine data wrangling operations (this may, of course, be because of my inability to get rid of old habits). But given that different people have different habits, perhaps the high-level interfaces that cater to these different habits do not belong into DataFrames.jl (e.g. my experimental Stata-like interface) . If that’s the strategy, I think it would be good to prioritize going for a 1.0 and keeping that interface stable.
That said, I think performance would be very important too. After all, this is one of the things that brought many of us to Julia in the first place.