You have a choice. Rejoice in your real name and post under it, and avoid letting people know the specific times when you're out. There are easy enough ways of doing that: a quick re-read of your post before sending is the simplest. Everybody in the world knows that I'm out some of the time, as I'm not a recluse, though I studiously avoid giving out specific details, but no-one here has a clue what thugs I've left behind to guard the place or what massive collection of vicious dogs I harbour. Or carry on as you are now.