[wcerfgba]

Not exactly the same but Syften (https://syften.com/) can do this kind of 'listening' for social platforms like HN, Reddit, ... . Possibly you could reach out to Michal about extending their ingest with arbitrary/custom websites?

[santamex]

I will do so, thanks for the hint.

[akfaew]

I'm happy to work with you on this. My email is [e-mail].