I also read a lot on these forums and there was absolutely no message from Funcom mentioning the change before it happened or on the date it happened. Players, on the other hand, did have a lot to say.
In fact, there are only 3 messages from Funcom that I remember seeing on the forums about this issue:
- Refreshed base decayed without any reason + foundations destroyed by player on PvE - #31 by Sarealac
- Decomposition time of buildings on pve-c servers has been reduced - #4 by Sarealac
- Carrefull, decay back to 7 days on officials - #124 by Sarealac
Notice that last one? It’s in a thread, created by a player to inform and warn everyone else about the change. The official reply to it was 7 days after the thread was created.
So by all means, if you have seen some timely announcement somewhere that the rest of us somehow managed to miss, please produce a link here.