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Thanks @asgarth and @dalz!

The RC stats page is showing 750 million RCs for 'comment(50)'.

That means my student (@nmorey) should've been able to make about 21 posts, but the error message (above) indicates that 15 billion RCs will barely allow him to make one post.

He made his first post a few minutes ago and it used up 94% of his RCs.

I'm guessing it's based on the length of the post, then? Does the '50' refer to number of characters?

Correct. The exact amount of RC is based on the length of the post content. Images are uploaded externally and only the link is embedded in the post.

Thanks!

That explains the difference then.

Most of my students’ posts are going to be 1,000+ words, which will be 6,000+ characters.

Thanks for the clarification. I’ve delegated RCs to all of them now, so I think we’re good to go.