For those people I allow them to set up an "invest lock". They specify the terms, and I hold their funds in the bankroll until those terms are met.
Example terms would be "I want it locked until 2 weeks from now" or "I want it locked until CLAM trades over 0.01 or under 0.004".
When you set those terms, I take them seriously. If you ask for the lock to be released before your terms are met, I will refuse. If you keep asking, I won't let you use the lock again in the future.
Neither "come on, it's nearly time" nor "your girlfriend is a bitch" are valid reasons to release invest locks early.
I'm going to be blunt here. Why the fuck are you doing this?
Instead of improving or maintaining the site you've decided to become the babysitter of those who can't be responsible for themselves? I'd imagine the people wanting/using this feature are the ones who bitch and complain when they want out too wasting more of your time. This is an extremely confusing and disappointing business direction if this is where JustDice is now going.