I love these kinds of questions. They're along the line of what would you do if money were no object?
In the context of STEEM and STEEMit the question is asking -
A quick rundown in case someone is new to cryptocurrency and STEEM, Dolphins are a rank that is the step before becoming a Whale.
Steemian 
Source here
I feel at times I will forever be a Plankton. Then of course I get a little laugh thinking of Plankton from Spongebob, how grumpy and evil he is. I don't wanna be Plankton haha
I would love to be a Dolphin, who wouldn't?
My answer to this question comes rather easily.
I would power down a few thousand and pay some debt off and put a little in savings but the rest I would vest and use for curating.
I really enjoy supporting other people on Steemit and upvoting content. I would research and learn how to curate more efficiently and the nuts and bolts of how that works. I could see myself spending a lot of time on that activity but I work as a contractor so while I have some flexibility it's always up in the air what my schedule will be.
I would also probably pick a few contests that I think are great with building community and creating a fun environment for people and donate to their prize pool. This all sounds very altruistic when I go back to read it. I'm not sure if my reality could really meet this ideal but I would try to work it out so it was consistent.
Speaking of voting power... I'm out of VP!
I've run out of voting power so will be taking a STEEMit break with voting for a while, but I still might write a bit. This next week will be busy for me anyway so maybe it's just the powers that be telling me to take care of my stuff piling up. I've been hovering around 40% VP for a week. I guess I have poor vote control, or PVC for short. I'll be voting again once it's charged up.
Thanks 
Here's a link to the contest where you can win Steem Basic Income shares
https://steemit.com/steembasicincome/@conradt/5-steem-basic-income-shares-giveaway-what-would-you-do-if-you-were-a-dolphin