For me it's the fact that so many of these commenters seem to think they've come up with something special, found some secret idea. That's completely false. Most physicists aren't very happy with dark matter as a theory (especially since the failure of the big direct particle searches). So the commenters are trying to convince the professionals of something most of them already believe. It's silly.

(My credentials: my fingerprints are all over one of those (pilot) experiments.)