gosh it isn’t “narcissist” to not “check the latest couple dozen posts
“I just discovered this thing, and since it’s new to me I immediately conclude that no one else has seen it either because the horizon of my reality extends no farther than the diameter of my own head”…is absolutely narcissist.
The opposite of narcissism is considering that other people exist, and that other people might have found it and posted it first, and to assume they have until you do some minimum amount of diligence to find out. That minimum amount of diligence is just checking for recent posts on the same topic - it’s not rocket science - it’s just having the basic minimum amount of social-awareness to consider there are other people in that community who may have already posted it.
Since I don’t associate LGBTQ+ with child-grooming, that notion never occurred to me. But now that you mention it, and knowing the current sad state of the current political climate, that point sounds entirely plausible. Thank you for pointing that out.