The script only runs every 20 minutes on Sunday and I'm only looking for the "HELPFUL_USER" type mod notes, but I don't see where I can filter just those through PRAW.

Getting the mod notes like this:

allnotes = subreddit.mod.notes.redditors(user.name)

Then going through them. If I see any note from before midnight today or a "HELPFUL_USER" note from today, I break out of the loop and continue going.

I've resorted to adding a sleep(5) after checking each user just to ensure it's not breaking the rate limit. most users don't have more than a handful of notes for a Sunday, so not sure how I am burning through so many as to cause a 429 response.