i'm with Yobit since february, I think it's quite good, for what I need to do, this invest box, it's brillant, DEV put some coin in a reserve wallet, to promote the altcoin, and choose the taxrate, until reserve is with money, you can invest, when money are ended, you can't, simlpy. So if I am a dev, for exaple of Centurion, I can put a lot of them in the reserve account, and give the chances to invest on them on a daly-weekly-monthly basis, with good taxrate, for example, I the DEV, say minimum 10000 CNT to 100000 CNT, i give 1% weekly. I am "forcing" or better giving the possibility to my altcoin to be bought (10000 min), so I create volume, and maybe price get higher... You can claim your money at will, if a round it's not completed, you don't gain any interest. So Yobit it's not responsible for the lack of money on the reserve account and for me it's 100% safe.
Another thing is if you don't trust Yobit, in that case do not invest.
I'm actually buying unknown alt coin to get some good rate for my 100-200 usd and it's working...
...my 2 cent
Snow
kaltum and substrata this is how it's working and the following answer is explaining the gain.
thanks to SyGambler
i just saw the Yobit email to me reminding me about their investbox and the new (stupid) rules of it.
apparently now you have to roll the dice on the coin you invest, 5 times each day in order to get the profit of that day. as if things weren't desperate and shady already.
and we all know that their dice game is not provably fair at all so you might as well give them your money!
man you don't have to wager a lot , 5 bets with 1 satoshi each will do the thing and you will receive your share from the investbox
there are two reasons for adding this rule IMO , 1st is that some players may like the dice and they may play more often and even if the dice is provably fair that means yobit will generate more profit
2nd reason is simply that you may forget to wager the 5 bets ( happened with me once so far ) so yobit will hold your funds without paying you interest , and this may happen a lot with different users ( basically saving some money )
I'm not saying that the whole investbox is not shady , but the rules isn't that bad actaully