I see it as a hedge SM/currency. Facebook is still king of social media but they are in decline. Instagram, by the way, is not. Even so, I see Steem as a good investment. Crypto has not hit mass adoption status yet. Steem has blockchain, it's a superior technology and it mitigates things like censorship which makes for a much more stable ground to build a business on.
Libra coin or not, Facebook still doesn't have blockchain,
RE: To Steem or Not To Steem