On my node's https://getaddr.bitnodes.io/ page, clicking the "Check Node" button on the bottom of the page reports that the node associated with this IP address is up; however, at the top of the page, "Node Status" says it isn't. It seems my node is having discoverability issues with the Bitcoin network, although https://getaddr.bitnodes.io/ can ping it just fine.
Why would this be?
I've even run the node on a different network (one even supporting IPv6), and I get the same issue.
I'm thinking it may have something to do with my running bitcoin-qt with a Tor proxy, although I am explicitly supplying the "--listen" flag to bitcoin-qt.
(I've asked about this on Github, but it doesn't seem to be a big in
bitnodes but a configuration issue on my end; or perhaps the BTC network in my area just doesn't have need of more nodes?)