The usage of live() was mitigated by using a global delegate selector (which is what "live()" did internally). That'll keep it working, but really it shouldn't be using that in the first place.
jQuery.live was deprecated because it masked the fact that it added a global event handler and matched every node from a user event against a css selector.
By being forced to use $(document).on('click', selector, fn) it emphasises that this is a global listener and is intended to encourage you to instead re-evaluate what this code is doing.
It should probably be listening on a common parent much lower down the tree than the document root.
I suspect that maybe this doesn't even have to be a delegate handler at all. It seems MarkAsHelpful does make assumptions about the matched node (it calls .parent().parent()).
If MarkAshelpful really does add new links asynchronously after document ready,, it should listen on a common ancestor instead.
If it doesn't and the live() was just an overambitious oversight, then it can be swapped for a regular query with on('click', fn).