Added Bug 88610 on 04/04/2014 addressing this problem. Received these comments on Bugzilla this morning:
" Rupali 2014-04-23 03:36:36 CDT
Recently yahoo has changed their policy to sync accounts so we have implemented the new policy in our latest ZD release ZD 7.2.5 It will be out soon , please upgrade and let me know if the problem exists.
Comment 4 Rupali 2014-04-23 03:37:10 CDT
marking as verified as it works fine in ZD 7.2.5"
I have no idea when the new release will be out, but it looks like ZD will be with us a little longer and the EOL threat will go away until the next anomaly.