Putting your complaints out there for the world to see is never the way to go, especially when you have something to say about your job or your boss. Even when you think your posts are safe from your boss, a colleague might be able to forward it to him or her.Even if that one comment doesn't hurt your job now, it could come back to haunt you later. A future potential employer might see it and decide that you're not worth hiring since you've badmouthed your employers in the past.