Re: Advantages of Bitcoin over traditional payment systems
1. Volatility of price of bitcoin is there which makes it a prime target for traders. bad news for stores/shops
Very volatile indeed. 
This is latest news - I think I am talking in general.
5. Irreversibility of transaction - though I consider it as the least because it is a fault of the user to mis-click and not system. However we are all human and we tend to make mistakes.
That's a feature of a immutable chain, not a disadvantage.I think this is a disadvantage since the chain is programmed like that. Modification needs to be done in this regard in the blockchain technology itself.
But thats just my thought.
6. Some people consider bitcoin = hackers, drugs etc since we all know about ransom-ware, and many people came to know about bitcoin from ransom-ware, Silk route incident etc
This is not a disadvantage of Bitcoin; it's just a misconception.You forgot to quote the rest of the post -
Quote
this is not a disadvantage but a bad name to the coin