Let's say you are typing really fast and then forget to carefully proof-read your message before posting it,only to then discover you have make a Speeling errer....well,if you do discover a spelling error here, you CAN edit it:
Make sure you are LOGGED IN,then locate the EDIT button at the bottom of your message. Correct your spelling errors (you can use a Spelling Checker
),then use the Preview button to see if everything looks correct.
Now, wasn't that easy