BLOCClOUD just has the same sticker as ours. There is no relation between the two projects.

Is there any exchange which is affected by this bug found by Cutcoin.org dev team?
if not, how one can check/see, there is no fake (minted) XMR deposited to the any of Exchange before this bug found?

https://cointelegraph.com/news/monero-discloses-bug-allowing-xmr-to-be-stolen-from-exchanges

An article about CutCoin on cryptocurrencyguide.

https://www.cryptocurrencyguide.org/cutcoin-anonymous-cryptocurrency-based-on-pos-consensus/

---

If I understand correctly
Smaller the Amount you stake, lesser the probability you will find a block in a short time.
One will get rewards anyway but if one doesn't stake for long enough time, he/she will not find a block and no block means no rewards. Opposite to this, if one stake a smaller amount for a longer time there is more probability to find a block in a long time.

Two ways to make it happen ( in both case probability to find a block is more),
1: Stake smaller amount for a longer time
2: The Larger amount for short time

Remember this is like SOLO mining, the larger hash rate more the probability to find a block alone.

The calculation is for staking 1000 CUT

Minting POS block within   1 day     3 days              7 days        31 days             90 days              1 year   
Probability (%)                    1.54                4.55               10.30             38.22               75.29              99.63   
Reward                         4.55 CUT    13.63 CUT    31.71 CUT   138.15 CUT   385.38 CUT   1292.92 CUT

In the table above, it says person staking 1000 cut will earn 4.55 coins a day but Cut coin block reward is 300 coins/block. This means one has to wait for almost 66 days to get a full block reward.

This is the reason for many people complains that they have not got any rewards even after staking for days ( this may happen due to low staking amount)