admin/content/comment doesn't show comments

This seems very specific for Drupal.org; in my test site the comment page shows all the comments created.
I also changed the comment permissions for the anonymous user, but the comments page always show the submitted comments.

It's sporadic. Sometimes I get just the pager (as Heine says) but other times I get the actual page. The page seems to take a long time to load and I get the pager. Could it be a server load problem?

All times I tried, in the last month, I always got a page without any comments listed.

It could be a server load problem; although, the page is not trying to load all the comment data, but just the one for the page being shown.

Tried this again and got this:

Error 503 Service Unavailable

Service Unavailable
Guru Meditation:

XID: 291951714
Varnish

(varnish was a link to http://www.varnish-cache.org/ )

Isn't this report a duplicate of #564466: Error 503 Service Unavailable on many pages?

Then, what reported by silverwing doesn't happen all times (or he posted a comment in the wrong issue).
For what I remember, the comments page shows just a pager.

Just checked and http://drupal.org/admin/content/comment is showing me the comments (though it loads really slowly)

The original report is about the usability of this page for blocking spammers. On the one hand, the slow load of that page seems like it's not useful for blocking spammers.

On the other, we now have the ability to delete comments in bulk from the user's profile.

I think this can be marked "fixed" but defer to Heine.

I can confirm the page is showing the list of comments (even if it loads slowly), while before it showed just the pager.
It seems the original report is not anymore true.