Not entirely on topic with #658 or #659, but related.

My expectation was for the atom feed to contain the thumbnail of the image (or equivalent of other media types). This is important to me, as I want to widgetize/aggregate the feed on other sites.

I found two places where feeds are generated, mediagoblin/user_pages/views.py and mediagoblin/listings/views.py:

for entry in cursor:
    feed.add(entry.get('title'),
        entry.get('description_html'),
        content_type='html',
        author=request.matchdict['user'],
        updated=entry.get('created'),
        url=entry.url_for_self(request.urlgen))

I am not sure what the thumbnail is, but I am betting it is a summary or maybe content (see the werkzeug atom docs). I think this is important, even if we are moving to make it a full ActivityStream, since the federation I have in mind is something akin to a dashboard view of new photos posted on my friends' sites.

So, can we get a thumbnail in there? =]

As we agreed on IRC a long time ago, custom delimiters are too complex for translation and other reasons. We might be able to think of a nice way to implement them but at this point it's too much of a mess.

Switch the tag delimiter to comma only.

This will help avoid confusion with WSGI middleware.