yeah... lets breach p2p block chain protection and let everyone to download the modified one
1. I didn't modify the database (block chain) in any way
2. That scenario can be made by anyone, and no need to download the modified block chain from anywhere. But in any way if 2-3 people would start client with modified blockchain - it would not change anything, because another 30 or more people would have the correct cain, so modified chain would be just ignored. You need an army of computers to fork a block chain that way.
3. I'm not saying that that way downloading the block chain is correct - just it took me about 3-4 days on my pc (Q6600) to sync one month data! And that is long.
anyhow, lightweight client would make sense, just like it does for BTC, it would attract more ppl to JPC.
Agree with you. We definitely need a lightweight client.