There's been some concern that the Facebook group 'Future of DearDiary Discussion' may mean that DearDiary is going away. That is not true – DearDiary.Net is not going away, but it will (at some point – I've been promising this for at least 5 years!) be changing in the future.
The current codebase is over 11 years old. It's got none of the modern social media capabilities. It's got none of the 'web 2.0' features. It has to be brought into line with current technologies.
Doing this means some fairly big changes under the hood. The discussion group is a place where people can tell me ahead of time what they like about the new system, what works, what doesn't work, what they desperately don't like etc.
Your millions of words stored in your diaries here are not under threat at all. The way you interact with them may change, but they will always be here