Slickdeals' Best Fire Deals emails arrive after the offer is dead
Earlier today I got an email alert for "Verizon Smart Rewards Members: $5 Verizon Wireless Gift Card for 500 Points at Verizon Wireless Rewards Program". When I checked out that thread, I discovered that it had been marked dead hours earlier. Another useless email alert.
These email alerts have the potential to be useful but not at the time they're being sent, at least based on these two examples.