It's illogical to calculate the thing you are looking for, but lets run with it just for the sake of it.
Let's go with your "one scam a day". The person then has to see it, choose to read it and then act on it (delete/ignore/get scammed). Not even considering the practical effects of receiving 4 before lunch, and none getting past spam filters the rest of the week.
Then you come up with 30 minutes for each individual scam? If it evens goes trough the above mentioned phases, nobody is non-profitable for a full 30 minutes, for every scam attempt, every single day of the year.
Using your 15 cents per minute, we could stick with just a minute of lost value. That translates into 340 000 000 * $0.15 * 365 days = 18 billion.
Still a totaly useless number because it's impossible to measure, but at least much further from 'ridiculous' than 10% of the GDP you came up with.
Let's go with your "one scam a day". The person then has to see it, choose to read it and then act on it (delete/ignore/get scammed). Not even considering the practical effects of receiving 4 before lunch, and none getting past spam filters the rest of the week.
Then you come up with 30 minutes for each individual scam? If it evens goes trough the above mentioned phases, nobody is non-profitable for a full 30 minutes, for every scam attempt, every single day of the year.
Using your 15 cents per minute, we could stick with just a minute of lost value. That translates into 340 000 000 * $0.15 * 365 days = 18 billion.
Still a totaly useless number because it's impossible to measure, but at least much further from 'ridiculous' than 10% of the GDP you came up with.