identifying newsletters via metadata instead of parsing URL

[tieguy]

Extended mode allows me to identify tweets by looking for twitter_id, and handle them separately.

As best as I can tell, the only way to do the same for newsletters is by inspecting the URL - it'd be nice if this was a separate metadata field.

(Obviously lowest of priorities, since so easily addressable, but maybe something to keep in mind, especially if you end up adding more feed-types-that-aren't-quite-actually-feeds :)

[endquote]

I ran into this today -- I've built up a lot of newsletters in Feedbin, and was going to use the API to clean them up, but I'm not sure how to tell which results from the /subscriptions.json API are newsletters.