I dunno what Banana and Treasurance's "mission" is. I just know that i laughed out loud reading their posts even being a fan of Touhou.
I'm only responding to this because I'm giving you the benefit of the doubt that you're not a complete idiot.
In a nutshell, if your post in a thread is there to pretty much blow a loud fart at the party, you're trolling. Their posts are quite transparently made to create disruption and incite annoyance or hostility. That's trolling.
I'm frankly a little suspicious of your wide-eyed "gee golly guys what's the problem" feigning of innocence. I don't really know you or your posting history, but I think you ought to drop the act. You and everyone else on this forum is fully aware of what "trolling" entails. Don't do it or encourage it.
And for the record, there are Rules and Guidelines (right there on the front page, go read them some time) and moderators do not appear at a whim - you see that link on the post that says "Report to moderator"? Yeah. At least one person clicked that and filed a report about posts in this thread. That's a reflection of community response.
PS: The "Cirno Edition" here is especially fitting, seeing how I can't seem to advance past the 3-on-1 fairy sandwich of love in GFW.