If you post 40 an hour, you will be marked as spammer ans got banned in less than a day. I think 40 posts a day is quite enough from one member, any more would raise some eyebrows. To be honest, there aren't that many serious topics a day to reply to.
That you make 40 post in hour isn't reason to ban anyone, if all those post are constructive.
I have once or twice done 100 posts a day but it takes dedication and free time
40 constructive posts/hour is totally unrealistic, maybe 20 if you're goodI see that OP chose to advertise PD, welcome aboard!
No, but you could probably work it out by looking at the transaction ID featuring all the users on payday. If you look at Stunna's feedback sometimes people post how much they recieved in the risked amount part.
He can look at the blockchain transaction of Stunna paying or calculate how many posts the active members posted in the last 30days