In this ever-changing world of crypto currencies, it might not be a bad thing if we saw several communities work together in times of need. That is exactly what MintCoin & BlackCoin did, to some extent anyway.
A security vulnerability had been found in the Proof-of-Work part of Proof-of-Work/Proof-of-Stake hybrids, in this case, MintCoin. This vulnerability would basically disable Proof-of-Stake blocks from being generated.
As you can imagine, this is a pretty serious issue, and can lead to all kinds of malicious attempts towards MintCoin.
Once this vulnerability was discovered by members of the BlackCoin team, they tried to let the MintCoin developer know what was going on. Having received no reply for a while, they decided to create a topic on BitcoinTalk regarding the issue, which you can find here.
Now comes the sad part. A lot of forum users looked at the information as “FUD” and turned against the very people that tried to do the right thing in this case, even though they didn’t have to. They could’ve also continually abused the system if they wanted, but they didn’t.
Either way, cooler heads prevailed, and thanks to the alert sent out by the BlackCoin community, the MintCoin developer has implemented a fix. The whole Proof-of-Work part about MintCoin has been removed, as it wasn’t really necessary anyway.
It is a good thing to see people from different communities try and help each other out. Props to the BlackCoin and MintCoin communities to resolve this issue rather peacefully.