5FDP was a member here before making his current account. Also a lot of people are fans of Transformers long before joining OTCA. SMHFConvoy's a relatively new member, but I can personally atest that he's been a fan of Transformers for MUCH longer than his join date suggests.
Some (not all) people who identify themselves as Transformers fans are like that. I've occasionally bump into people who parade around in Transformers apparel or have TF badges on their cars etc., and when I strike up a conversation with them about Transformers it becomes abundantly clear thast they don't really know much about Transformers itself (beyond what pretty much every man and his dog would know).
I didn't say that it came as a surprise. Far from it, it was something I was definitely expecting. That's why when news of the live action movie came out (about 10 years ago) I went and hunted down the remaining early G1 TFs that I still needed (all two of them) just in case the increase in fandom would drive aftermarket prices for G1 toys up. In hindsight I'm glad I did it, because both of the toys that I needed and acquired have since been KOed.
I didn't say that either.
It all depends on whether or not they decide to remain devoted to Transformers or if they choose to quit. Some people may change the nature of their devotion (e.g. become more fans of the comics rather than collecting toys), but they still remain dedicated and devoted to Transformers.