Bitcoin addresses are not supposed to be re-usable, that's why it hide the used and empty ones.
This kind of freaked me out first, time too... any chance it can come up not hidden in the new builds until the user selects? Re-use of new addresses is a user choice and disappearing your blog deposit address is not appropriate.
Not using strong passwords or making up "weak brain wallets" is an user's choice too, but that is not a good reason for letting them do that.
You can use the Contact tab to add you own blog address so it is accesible trough the Send text field, and it will show up in the Receive tab in case it has funds on it.