again: "Written from scratch" doesn't mean inventing the wheel and everybody knows it.
No, but it means when you write something from scratch you don't end up with the same low level bugs and code organization line-by-line. You only end up with that when you
copy the code.
The algorithm is the same line by line and even the esoteric identifier name "IsTerrible"/"is_terrible" is used in both.
Get it?
It is obvious that a crypto currency that is said based on bitcoin and peercoin protocol, will have some similar lines.
In a code with thousands of lines was found just few "similar" lines.
Wrong.
There are many places where Vanillacoin copied Bitcoin code. I have pointed out a good example previously, it won't be hard to find dozens more.
There's nothing wrong with copying and modifying the Bitcoin code, the MIT license allows you to do with it what you like, it just ask you not to be a scumbag and remove attribution and pretend you wrote the code in the first instance.