Wow, it derived in a meta discussion about HN/Lobste.rs.
We have been talking about implementing it, but our final decision is sticking to the original code and make it open source asap to make it better.
Our main reason is that lobste.rs is written in Rails and we would have to learn a new framework to adapt it to our needs, while Python (Django) is more extended among the Data Science practitioners (main target of DataTau and potential contributors).
An open sourced Python alternative may also be interesting for many people.