Can you expand on asking "what's this for?". Maybe an example or two? I'm not clear on what the context is.
Particularly useful when you spot a free-floating comparative, seems to have wider application. (e.g. you just asked it about itself.) Try it yourself, for all manner of values of "this"!
So after reading SarahC's latest post I noticed that she's gotten a lot out of rationality.
More importantly, she got different things out of it than I have.
Off the top of my head, I've learned...
Where she got...
I've only recently making a habit out of trying new things, and that's been going really well for me. Is there other low hanging fruit that I'm missing?
What cool/important/useful things has rationality gotten you?