Bitcoin transactions cannot be free.

Nothing is free, and miners won't maintain the network unless they are incentivized. They need to pay off their expensive mining equipment. Once the block rewards end, the incentive needs to continue. The block size cap only existed so early adopters could quickly download the chain and get in quickly. If the cap was removed then a fee market would emerge, and wouldn't that decrease the possibility of a spam attack? With a 1mb cap, the fees will be higher, but the network is already limited by the supply of miners. There will never be an infinite supply of mining power because resources are limited.The network is already regulated; a block size cap is not necessary. Don't artificially limit the size of the network!If the block size cap was removed, a fee market would emerge. This would be truly free market.tl;dr:Don't artificially limit the size of the bitcoin network with block size caps. The network is already limited by mining power.Let the miners price-find the transaction fees. When there's spammers, price them out of the market.If transactions remain virtually free, then miners will have little incentive to maintain the network. For the best results, let the miners compete for transaction fees in a free market.These are my thoughts at the moment. Feedback is welcome. via /r/CryptoCurrency http://bit.ly/1KIYcje