For something to be legally binding you have to first ask yourself two questions.
Insomuch as thereafter answering said questions, you will only be legally bound to the legal bindings of your post that was presented in a legally bound way without due consideration to the aforementioned two questions, which may, or may not, legally bind you to the results predetermined by your previous query.
So, therefore, you will only be bound to the legalities of your posts if, and only if, you succumb to the principles set forth in the preceding legal interest of pertinent and related postings done either by yourself, or another (within certain jurisdictions) that would include your post pursuant to your acceptance of the previous agreement.