Test! Looks like notification emails have a ~10 minute delay and are done in batches.
Hnreplies is faster.... within a minute or two ...
I would prefer it be even slower. I was going to suggest making it configurable per user. I don't want my email blowing up or for it to turn into FB or Discord notifications (i.e., constant).
Would be nice if HNReplies did a daily digest or something.
It's a 5 minute delay. But it can be changed easily.