Punctuation is important for us to use to deliver the meaning in the sentences we write. Some people do not really care whether they have to use the correct punctuation or not in their writings. For me, this is okay if they are writing informally, such as posting in social network websites such as Facebook, Twitter etc. But when it comes to a formal situation, for example one is replying email from lecturer, it is important to write properly. Means, writing with correct punctuation used.
Someone’s writings is one of the way to describe how the person is. We can easily understand that this person is smart enough by looking to his/her writings. Example of punctuation are:
- Capital letter
- Full stop
- Semi colon
There are many more. This website has good information on how we should use punctuation correctly in our writings.