PD.Radar — Ranked Answers from Real Threads

Upvotes are a popularity contest, not proof of what helped people. I kept seeing big threads where the most-upvoted answer wasn't the most-mentioned resource. So I built something to fix that.
PD.Radar mines big, answered "question" threads and ranks every resource people name by how many comments actually cited it. The ranking is verifiable against the thread in ten seconds — no trust required.
The proof: there's a 524-point HN thread asking the best money people ever spent on professional development. 540 comments. "Therapy" won with 51 citations — and it wasn't anywhere near the top by upvotes. That's the gap.
Leaderboard live here: https://justinnnnnnn045.github.io/pd-engine/
Right now it covers that HN thread (24 resources, hand-checked). The pipeline is a script — point it at a thread and it produces the ranking — so the next niche thread takes ~30 minutes, not an afternoon.
Status: built, live, pre-revenue (that's the honest number). Solo founder. The part that got replies when I shared the method: giving people their own question back as a ranked dataset, where the work is the proof.
If you've got a thread you'd love ranked, drop the link and I'll run it — the interesting part is seeing which answer wins in your niche.