There were several critiques that appeared only in the ChatterBox, and I only managed to observe a small sample of them. With the aim of wider discourse, I'll attempt to repeat them here. [Feel free to add/correct.]

1) To post a spoiler, 2 nodes will need to be created.

2) The spoiler topic would be huge.

3) The spoiler topic would have a lot of unrelated info in it.

4) Spoiler nodes would show up in searches. [I'm ambivalent on this point. Yes, spoiler nodes would show up. Would they be relevant? Are any other search hits relevant?]

I must say I'm concerned that lots of useful info is tossed around in the ChatterBox about existing posts, and never captured. This node is my attempt to mitigate that situation.