Yes, I realize I should be ashamed of myself, but I love operating with the assistance of DX cluster spots.
Curiosity, and a desire to grab spotting information from a variety of sources (including, occasionally, an in-shack skimmer) prompted me to set up my own cluster node.
I won't guarantee 24×7 availability, but if it is up and if you have a valid amateur callsign, you are welcome to use it.
The node is online at kg4v.miketheactuary.com, port 4242, and it runs AR-Cluster v6. The default filter feeds spots made by stations in eastern North America, including RBN.
There is plenty of information on how to craft your own ARCv6 spot filters available at AB5K's website.