There was a time when funds in savings earned interests. Not much, just a small chunk of new steem tokens in your 'savings' wallet lil pocket. But at least a little bit more interests than what fiat banks payed or are currently paying when you have stagnant funds in there. };)

However, Stinc & Stinc Devs decided long time ago that they weren't going to continue paying interests to us for using that wallet feature. I don't recall what the reason for that decision was. :)