It drops in price every time we hear about a big scam or some kind of fraud.
This drops are not something significant, and hardly can be connected only for Fud.
But in one coordinated attack damage can be made, but we have price fluctuation and without bad news or similar..
This is normal.
Indeed, this is normal and more currency's have this, not only the bitcoin has this and I must say it are not big numbers that are lowering.
So I think its not a big problem for the bitcoin, people are just hating on the bitcoin because its going so well..
People who have gone through huge losses in the past will continue to spread negative news related to it, as they don't want that others should earn money from it in present.