Reply To: Can WP & BP handle 1000+comments per day?
If you mean “comments” as in “comments on a blog post”, that’s obviously part of WordPress. That will definitely scale fine.
If you meant “comments or replies on activity stream items, or status updates”, that’s BuddyPress. This should scale just fine, too.
This assumes your server(s) configuration is optimal, and that you haven’t got any slow code running in other plugins/custom code, or in your theme. I/we can’t really help you with that here — running a performant server(s) for WordPress is outside the scope of providing BuddyPress supports.
The only piece of hosting advice that I’d recommend for any WordPress-powered site, but especially larger sites, is to make sure you’re using an object cache, such as memcached.
