Interesting, even its 3 month old news. i think the feature they are discribing in only a internal thing, so it might be useful in some cases if you use ipay for most of the user it wont be of any help.

i have seen that you have voted on a topic i suggest through a comment, and i think this might be of your interest too, as its very unusual topic on Steemit.

I co-authored it with a friend who just was approved to Steemit, and we would love to have a look at it:
https://steemit.com/food/@knozaki2015/britafilters-hacked-read-the-whole-hacking-story-steemit-exclusive

thanks!