It is not crime to use a broker that is not regulated, but be careful though because when things go wrong there will be no one to hold accountable but yourself. So lets just say regulation gives you that sense of security and trust even when there are other very important things to look out for. For instance, in my case with forex chief it was not just about regulation but mainly about how long they have been in the market, trading now for over 8 years now says a lot.Personally, I aim for a low broker with excellent trading conditions and active customer support.
Like I said before it shouldn't just be about regulation alone even though it should be a must in the factors you consider. But look for other important factors before you choose, like I mentioned in my previous reply that I chose forex chief for being in the market for long, that can been something we consider before we choose.most people will look for regulation and spread. An unregulated broker is more or less a scam broker and you will just lose all your money. Spreads are also important as different broker offer different spread on their trading instruments so lower spreads can really save your trading cost.