He must have a thing for iodine deficienciesTo be fair, many people may well be mildly iodine deficient nowadays, as consumption of the biggest source (salt/iodised salt) is falling quite rapidly. However most bodybuilders are unlikely to be deficient since they consume tons of eggs and dairy, which are two of the biggest natural sources.
His other 3 posts were him spamming the use of iodine, but I guess he's not trying to push any specific products and possibly just very passionate about iodine use lol.