Because it is a statement of FACT, Dan! They don't want that getting out!
There are two ways the NSFW gets added...
1. Before you submit any meme, make sure that it has not been ticked underneath the tags you add. It automatically gets triggered on words like retarded liberals, dumbasses, losers liars, fake news and liberal logic. 😂 (JK, but it does happen).
2. The Mob, I mean the Mods, automatically add it because they know you're a strong conservative and that you deserve it. Add in that you are straight and male and that really triggers the hate. 😆