What is facebook messenger active now accuracy?

As an AI language model, I do not have access to any specific information about Facebook Messenger's active now accuracy. However, it is important to note that accurate active now status depends on many factors such as:

1. Internet connection: If a user is not connected to the internet, they will not appear as active on Messenger.

2. App usage: If a user is using other apps on their device, they may appear inactive on Messenger.

3. Privacy settings: Users have the option to hide their active status, so they may appear inactive even when they are online.

Given these factors, it is possible for the active now status on Messenger to be inaccurate at times.