Pru, thank you so much for your post and the links to the other threads (and your daughter sounds like a wonderful, generous person).
I read through the threads and there was so much valuable information in there. People don't look at dd and take her as gifted, she's so laid back (hence testing, we just weren't convinced the first test was accurate - she was really young and while she'd show spurts of amazing ability mostly she's happy reading and playing).
She goes to a school where the parents are very competitive and I constantly get asked about how far ahead she is in class. She's so happy I've never found out the specifics which people seem to be tantamount to child abuse (we changed schools early due to much unhappiness so I have a good sense of what unhappy dd looks like and the contrast with happy dd). I know and am comfortable that she's super smart, but sometimes, from their reactions, I think that perhaps I should be doing more. I'm not sure what more we could do other than force her to do academic stuff - she has piano lessons, has tried a load of different extracurricular things, does different holiday programs each break and so on. She loves trying new things, but then moves on. It's lovely to know other people's kids are like that too.
But even with piano she doesn't have to try much - she gets given a new piece each week, learns it with 10 minutes practice a few days a week and then has it down. So I worry that nothing is an effort. But I get the sense she's much more interested in relationships and how the world works than anything else. Much like your dd, Pru, she'd rather figure out the items she'll make for her future confectionary shop or working on jokes for her career as a comedian.
(apologies for typos, lack of clarity etc - typing on a mobile)