Why do you need the port numbers in addnode btw? Are those nodes really running on some other ports than the default?
if they (nodes) are behind firewall or use uPNP then
YES, they can use different port than default one.
Yes, and those are unstable because I think not so many use static ip, but those are added in alcurex conf.
New micro2.2 use one static node as well upnp. Static node is mandatory (in code) and same as block explorer and alcurex use.
Anyone have time to contact Poloniex, mintpal or bittrex to asking add the new micro?
I'd wait until MRCclassic transfer is over and put to rest before trying to get relisted on other exchanges to prevent headaches.