Full 1MB blocks grow the chain by 4.4GB each month. 52,8GB each year.
I recently bought a new computer, it was a cheap one. It has 200GB HD. Most of the computers in todays' homes have less than 500GB storage.
So basically we can live with 52 GB space consumed within a year. Maximum maybe double that (2MB blocks). Anything that's more than that would mean to tell people to buy new hardware. Most people won't bother and just not adopt Bitcoin at all when it requires them to download terrabytes before start and dozens of Gigabytes each month.
Currently i noticed a a service that sends 0.1 millibitcoin to random active adresses with a message attached to double ones bitcoins at his adress (
https://blockchain.info/en/address/19Sp5HuwrcW23TetC9kE5WMqziUSXLjYyY). Maybe this is even orchestrated by the Gavincoiners to fill blocks up to force people into Gavincoin.
Regardless of that i think this service is proof transactions are too cheap.
With Gavincoin these type of activities would just grow larger and in the end the bitcoin blockchain is filled with trash and bloated to such a degree that it becomes unattractive to adopt for people due to bandwidth and storage requirements.
