Atuan
Atuan does not dig through Reddit's archive. You name the subreddits you care about, and it records posts and comments from that point forward — timestamped, structured, and yours.
Subreddits, flairs, and whether you want posts, comments, or both.
Nothing is backfilled. The record starts when the watchlist goes live and grows from there.
Browse what has been collected. How the data gets out of here is still an open question.
Honestly, I am not sure yet. Right now it is a collector and a watchlist, built in the open. Whether it turns into alerting, a dataset people query, or a research tool depends on who shows up and what they need. If you have a use case, that is the most useful thing you can send me.