It was just a little joke, don't worry. A joke drawn from the Flash avatar and predominantly posting in Arrow/Flash threads aside from when you're saying something negative about a Marvel property.
It's just something I quickly do before I take people's comments too seriously and I'm pretty sure there's a running joke here of reposting people's avatars in DC/Marvel threads. It's clear that you didn't have high hopes to begin with and waded into these threads to utter the confirmation of your fears despite their being more comments about Spader being good than bad but you take those bad ones as correct because of your previously established opinion.
Thus the implication of the joke was that your posting history and avatar create the general 'stereotype' - for want of a better word - of the people who dislike Marvel properties.
Though you may not, it was just a joke.