> If you scale back the notifications from 1 every 10 seconds to 1 every 5 minutes, it becomes a much more reasonable number with only 288 requests per day per user - which gets into very different numbers when dealing with a subscription.

Except you're still making up fake numbers. He was giving an example, not quoting a dedicated solution.

I even linked to their server code in my previous comment where you can see they do batches of 100 users every 5 seconds. Unless they only have 200 users, then it will not ever be “1 every 10 seconds” like you keep claiming.