Meme: contagious idea.

It is easy to remember and it produces a positive reaction on the spectator. Quality of information, even veracity, are a second thought.

If I had to guess, "memetic drivel" gives off the same subconscious signals as safe, healthy communities.

Demonstrating that the speaker is at ease, receives broad support from listeners, and can say things without fear of reprisal.

That's very interesting food for thought, thanks!