BuddyPress.org

@robg48 something else you could do is use a honeypot. An example is

http://www.pixeljar.net/2012/09/19/eliminate-buddypress-spam-registrations/

It works by adding a hidden field to your registration form. Users can’t see the field so will never complete it (it will always be blank). Spam bots, however, don’t view the page in the same way as…[Read more]

@robg48 just a thought – try changing the name of your registration page. Spam bots automatically look for pages such as /register/ so maybe use /sign-me-up/

@robg48 BuddyPress links in Appearance > Menus will be default in BP 1.9. So if you’re adventurous …
https://buddypress.trac.wordpress.org/changeset/7427

@robg48
If all went well with the import they should!

@robg48
Those 2300 must not have logged in the first time. If they have not, they will not show up in the members directory. If they have not logged in yet I would imagine a good majority of them are spam accounts. Good luck!

@robg48
Did you check in dashboard/settings/buddypress/pending activations?

@fel3000 @robg48
You can activate users using that method. However I would advise backing up the database before doing these edits. Even after activating a user this way they still will not show up in the members directory until they login the first time. Instead of fiddling around in the database why not just use a plugin to activate…[Read more]

@robg48 – this could well be half of the solution you’re looking for when importing stuff from WP to BP. Although there’s no mention of a user import (just blog posts).

https://wordpress.org/plugins/bp-import-blog-activity/

Edit: Just came across the following – please note i’ve not tested it.

BuddyPress Members Import