What happened to the "review posts" section?

re: in the upper left under the member avatar activity section.<div><br /></div><div>The option to view current post activity in the forums is gone. If an older thread is resurrected we will have no way of knowing about a new post short of hunting down every old thread we ever participated in. The feature was particulalry useful with project discussions away from the main board.</div><div><br /></div><div><img src="https://scontent.flas1-1.fna.fbcdn.net/hphotos-xla1/v/t1.0-9/13091901_1…; style="line-height: 16.9px" /></div>