But you aren't forcibly refunding SBD investments that were already made, yes? You'll just have to always keep that SBD on hand... which defeats the purpose of investments a little, but at least you won't disappoint users, and they'll eventually withdraw all of it if SBD does pump.
While we're chatting. I'm running a bigger version of my weekly contest for its one year anniversary. Would @tipu like to be a sponsor? I'd give you a big mention and thanks. I always use little tips as prizes. If you were willing to fund a bigger tip, I'd give one to the winner!
here's the link to my first mention of it. The actual anniversary contest would be in two weeks:
https://steemit.com/contest/@improv/punday-51-huge-prize-announcement-all-former-entrants-should-pay-attention-last-chance-to-jump-in-for-this-big-prize-pool