IMHO, a vanity should only be offered if it is the equivalent of a news / commentary article.
You could have put these few lines into a response on most any Spitser thread.
At an absolute minimum, it should be labeled a vanity or even a rant, so everyonne knows all they will get from clicking on the thread is the equivalent of a single response.
That opinion of yours does not sound “humble” at all.
Freepers aren’t stupid; let them judge for themselves. If someone is out of line the moderators will correct matters.