The plugin rules have – since the directory started – said that any “Powered by..” link must be Off be default. This plugin had the link On. So it was closed and the author emailed and asked to change how it worked. This was on Feb 13. Just that change is all that is needed to get it back. Have no idea why the author has not yet done this.
Sometimes it’s much better to have such advanced plugin available with checkbox in illegal “On” position, then to have the proper nothing.
“Powered by..” link is not so crucial fault. Specifically there it was the small trick for that user will switch it off and “agree to donate or write about this plugin”.
Hope this pity incident will be resolved.