Neat idea. I could probably add that to the app pretty easily
Discussion
An alert for when the min fee reaches a certain level would be useful.
This would allow you to be alerted when fees are heating up & not just when they're cooling down.
I still don't see why other people's alert data would be useful. My alerts certainly don't indicate I'll be placing a bid for block space.
It would definitely be more useful looking at data of transactions queued… which is what the mempool.space fee rates do already… so yeah