Maybe your website could display a pop-up warning message or something like that.
Or maybe just let the system send a warning e-mail to yourself so you can take a look and assess whether it is relevant or not.
I've been thinking about this in light of recent events.
I'm looking at alerts along a few facets:
1. More than X% of a creator's items or a series' items being redeemed within 24 hours
2. More than Y items belonging to the same creator being redeemed in a short period of time
There's a few things to consider when segmented (what kind of time window to use, whether we give higher weightage to multiple redemptions in the same tx or not), but those can likely be tuned as needed down the road.
For actually sending out the alert, I would want to send out to the telegram channel for a start - I'm on the opposite side of the world from most collectors, so if something happens (like this week), I may not react fast enough given timezone differences.