The removal button only makes you feel better about a bad statement !
By making a statement in a blog you leave yourself open to the wrath or your peers and others that see you for what you are. We all must think about the whole picture when we sit down and decide to post on this or any other forum, When you take pen in hand and decide to let the community in on how you feel or ask a certain question of your peers you must be ready to receive the answers.
To try and salvage a bad post by removing things you don't like will only make the people who added there thoughts to your remarks see the true person you are. Take a moment to think through your post for what it will become, Then if you feel it is of value to all who might read it, by all means add it for discussion and be willing to take the responses as written even if you later find out that you have made a foolish post.