Hi,

first things first: The reason for using SHA256 is simple - SHA256 hashes are shorter, but the are not less secure by any means. There is no known collision known for neither SHA512 nor SHA256. You'd have to crack the original 128 bytes of the "secret" part - good luck brute-forcing that. Neither SHA256 nor SHA512 have been cracked so far it's not going to happen in a foreseeable future, even with quantum computing on the horizon.

I am glad you people like that investing is back. So far I've got the following feedback:

1. Commission is 50% of "expected profit" instead of real profit. Some people like it, some people have objections and it's OK. It definitely does move the "risk part" to investors and protects us as site owners, but that's the point. 50% itself does not seem to be an issue, other sites have been taking 50% cut for some time now. In the long term, wager-based cut vs profit-based cut should not matter much since the real profit oscillates around the expected profit. But I have to be honest - since our costs like referral bonuses and rakeback are based on wager, it's so much easier and safer for us. We've been through moments when not only bankroll lost a chunk of coins but we also had to pay the bonuses from our own pockets and a few such events left us in loss for months.

2. Pausing the investments during competitions. This sounds controversial, but it's pausing only, for one week once in 2 months. It's still not implemented in the code, so no worries :-) Anyway, I think the competitions bring more to the table then just increase wager for a week - they reactivate existing players, they bring new players and get things rolling.
We'll try to think it over, maybe we will not be pausing investments on all competitions, or maybe we'll come out with a different ideas.

3. Yes, ETH will be open for investing too. Finally  :-)

4. Dilution fee - most feedback suggests investors don't mind the dilution fee, but I am still having doubts. From the investor's perspective it's locking funds in the site. I might postpone these dilution fees for some time. I'd be really happy to get your opinion on this. What do you think?

Cheers,
Ethan