You will +1 it if you know the fact why I am using coinbase. I am not using it's a wallet to store my coins. Coinabse is most popular in my country due to the fact of peer to peer free transactions. All bitcoin resellers in my country use coinbase to buy sell bitcoin. On the other hand, its instant peer to peer transaction made it easier to deal faster and save transaction fees. Of course, I never hold for a longer or a big amount. For example, I received a signature reward in coinbase and sell it instantly to local resellers without fees. If I receive my rewards to electrum then I have to pay transaction fees during the sale my funds. I am not encouraging to use coinbase or any centralized wallet, but the fact I told why I am using it temporarily. Just a question, why should I pay transaction fees for a small number of funds when I could deal it free and instantly?