This is sensible.
STEEM is designed with high inflation in mind. Right now liquidity is low so the price is very high. If you sell at the peak you could actually cash diversify and buy back at the bottom to get the best of both worlds.
Sadly most people don't use this kind of approach in crypto and get too attached to one or more currency.
We all want and believe STEEM can succeed but we can and should still act sensibly to maximise our profits and rewards.