We do have an alternative way for you to keep up with the posts you're interested in using the Subscribe feature that you'll see throughout the Community for Places, Boards, Posts and even Replies you are interested in.
From your Profile Avatar I'd recommend you check out our help documentation. Specifically this one should help explain more on the subscribe feature and managing your notifications to suit your preference on how you'd like to be notified of updated content.
Help - GeoNet, The Esri Community
I hope this helps.