I'm just now realizing this. It appears that whenever I post a reply to a thread, I automatically become "subscribed" to that thread. My e-mail notifications are off, which is fine, since it's what I want. Is there some way to disable the automatic subscriptions, so I don't end up with subscriptions to every thread I post a reply to?
2007 - Majesty of the Seas (Bahamas)
2009 - Enchantment of the Seas (Western Caribbean)
2010 - Freedom of the Seas (Western Caribbean)
2013 - Golden Princess (Alaska, roundtrip from Seattle)