I subscribe to more of 300 airdrops in the last month and only received 40
This is complete bullcrap. There is no way you can tell me that you applied to 300 airdrops in one month. There are definitely not 10 airdrops a day. That would be almost impossible. I keep up with airdrops and there is usually 1 or 2 new ones per day at most, legitimate ones at least. Even if there were 5 per day it would be a lot, but 10 per day? I don't think so. I think you made a type and added an extra 0.
Yes its possible there are a lot of airdrops everyday...
That's from your own experience
I do sign up for 10 to 20 airdrops everyday even though I'm aware most of them are just scam asking for donations .... I just ignore the donation box an do my thing
So 300 airdrops in a month is 100% possible