>I posted this message here because it seems there is still a lot of people who are writing HTML tags, it Save and discover that the HTML tags or the message is not formatted properly.

Oops, forgot to include an important part.

This is not only to be used when you are putting HTML tags but also to be used to preview without HTML tags, thus discovering that you might need some HTML tags to format your message. This is especially to be used when you are pasting some code. So, spaces and tabs will not be seen as is once saved if you don't HTML them.