My own website has a bulletin board that offers a personalized list of messages after you login: whatever threads you have not yet read. And so do many other websites of this style. So this cannot be a differentiating aspect.
They are very different.
>So this cannot be a differentiating aspect.
Now explain that nuance to an 80 yr old law maker who hates the damn email.
Are you also harvesting teens data and selling it to the highest bidder or using it for target advertisements?