Also, it being open source doesn't mean anything for solving the problems in Bitcoins, any meaningful changes to Bitcoin software means you would have to start a new blockchain, defeating the purpose.
The biggest flaw with Bitcoin is that it never takes human nature into account. However, flawed people use it, therefore it will always stay broken and corrupted.
Whats meaningful? The fundamentals can't be changed yes, but why would you want to change them?
21 Million Coin Capped (Preventing Longterm Inflation)
No duplicates in the system (Preventing Fraud)
Public Block Chain (Improving transparency)
Difficulty goes up as more miners subscribe making it harder to get this money (Giving the coins even more value as time progresses)
What else am I missing that's flawed in your opinion sir?