In simple terms until it gets a centralized state it will not be given importance as a legal currency. In my thinking it will get the legal status with some sort of limitations depending upon the government. It is legit, as everything happens through internet scamming is easier and this makes people term it as not a legit one.
If bitcoin will be legalize, it will be subject to the government authority. So its regulation will be dependent on each country's governance. It will become different, but we cannot say scamming of other people will stop.