Just so you know, the decision to use announcements was made because the use of stickies obscures the latest updated topic.
By clearly separating the "pinned" items from the run of the mill topics, it's always easy to see which are the latest updated topics without recourse to symbols.
"Do not force others, including children, by any means whatsoever, to adopt your views, whether by authority, threat, money, propaganda, or even education." - Ven. Thich Nhat Hanh
"Whether I were to preach in brief, Sāriputta, or whether I were to preach in detail, Sāriputta, or whether I were to preach both in brief or in detail, Sāriputta, rare are those who understand." (A I 333, Sāriputtasutta)