> I mean do you really want subreddit name and subreddit_name_prefixed? They’re the same, one just has an “r/” in front of it.

This is (unfortunately) not quite true. Since Reddit introduced "profile posts," there can be a post where the subreddit name is something like "u_Shitty_Watercolour" but the subreddit_name_prefixed is actually "u/Shitty_Watercolour", rather than "r/u_Shitty_Watercolour".

Example: https://www.reddit.com/user/Shitty_Watercolour/comments/84nh...