Has Waldrick been able to sign a message using a bitcoin address that was in his possession before he returned? I don't think the current Waldrick is the pre May 2015 Waldrick which is when he last posted before returning the day QS was removed from DT.
nope.
theymos locked his account because of some problem and says he's going to look into it. doubt we'll see him again if he's not the real one.