> I'm not seeing the immediate value here. The parent comment might have been coming at it from the angle of having a firewall in front of your web app is help

> I'm not seeing the immediate value here. The parent comment might have been coming at it from the angle of having a firewall in front of your web app is helpful because it blocks a whole bunch of bad actor traffic from ever touching your app's servers. Of which I would agree with too. A decently popular site could end up having at least 10% of its traffic being malicious. Let your app servers worry about the legit traffic and filter the rest beforehand.