Improving native messaging application

i am new in this community.. please tell me if i made mistakes..

i am now using iphone for quite sometimes and i really enjoy using this phone rather than any other phone brands.

i just want to give some tell that apple should make improvement to its messaging application.

I notice that apple also make some improvements to messaging application but i think they should observe more to what should be improvised rather makes it standard..

I loves messaging but lack of great features such as QUICK REPLY, SIGNATURE, QUICK COMPOSE, AND ETC..

so all i want to say is don't give us any reason to jailbreak our iphone because the main reason why people jailbreak their device is because they can customize their device anyway they can..

Anyone agree with me???