Dxcluster used to use a lot of radio links to disseminate data. However fixed internet lines have become much cheaper, so there isn't the need to have massive HF antenna to create relay link any more.
I'm not sure why this was downvoted. The author is correct.
Given that space communications and the militarization of space is becoming more and more prevalent, we are on the cusp of seeing some military actions in space that could render a few defense agencies impotent with regards to C3.
Dxcluster used to use a lot of radio links to disseminate data. However fixed internet lines have become much cheaper, so there isn't the need to have massive HF antenna to create relay link any more.