Guys what's wrong with you! Why are you so good at this? I guess I'll just add empty lines for Round#4.
5. Bitcoin-QT
You guessed correctly.
1. fungibility
2. encrypt
3. cypherpunk
4. orphan block
All 4 are correct! I will see about adding a special local rule that restricts you from participating.

6. Flood attack
Good guess.
That's all from Round #3.
Should we continue?