Please read the documents, buddypress is not required.

I can confirm that the categories can be translated fine with WPML for different categories per each languages.

There is a PHP function: ap_follow_button($user_to_follow)

Please ask your theme author about theme RTL.

Please install this plugin: External Links

Hi Rahul, first of all, congratulations on AnsPress, it looks fantastic!  We are planning on using it for a project.  I was wondering if the Ranks extensions is something you still are planning to release soon? Thanks!

Uhm… Is it normal?

This has been fixed… please make sure you have latest version.

Both AnsPress and AskBug support RTL direction.

Here is the sample code for you: https://gist.github.com/rahularyan/6b6d643783468071283e