There are many members that may still be unaware that the Barrow-Downs has been revived (is that the wight term?). There are probably many more that are unaware that the site was down.
I have two suggestions.
First, to the extent that we have e-mail addresses for our old friends, send them a missive to invite them to visit. If you don't have an e-mail address, then a PM.
Second, why doesn't everyone consider committing to starting one thread within the next ten days. Just one. The boards are revived. Let's wake them up a bit!