system
A chat on subreddit /r/wallstreetbets
human
I mean, I assume he's talking about puts, because a move from $100 to $98 would apparently be profitable for his hypothetical strike of $99.  
  
 If so, the answers to his questions are pretty obvious: a $70 strike put option costs less because it's farther out of the money and such a move is less likely; you *can* buy a put at a strike price of $99 and profit when the stock moves in the direction you expect (down). Not sure where the confusion might be, tbh.

gpt
I think he is mixing up being bearish on calls and bullish on puts