Is there really nothing that can be done about all the "my cousin makes xxx dollars part time..." spam comments that we're getting recently?

The last 2 articles I read (Desktop dungeons and another one) had a large number of such comments.
I assume RPS has some kind of anti-spam filter, which is probably catching a lot of spam.. but these ones seem to get through on a regular basis.

Can we get a "report spam" button? Or are we supposed to use the "block" button for that?
Does multiple people "blocking" a post flag it up somehow?
I feel like if we at least had a "report spam" button we could be training the anti-spam software or something.