I've never seen a big failure project like blockburn this year so far, in 2019 when this project was released it was trading at a whopping 0.93$, and after bounty was over, without sending any token to any bounty hunter the value is now 0.00007$, this will be the first failure project I promoted this year, the use case is something that should work as per my research but the question is, what happened? Exit scam? Or team dumped?
There are those ones and it will always happen, not going to be the last one and certainly it wasn't the first one neither. There are tons of projects that starts and probably as soon as it starts you smell the rotten egg and eventually becomes worthless in general. There are many reasons for it, sometimes its purely just scam, they scam people and leave, but sometimes its just morons trying to build something and failing.
In the future be more careful about what you pick to invest in or just spend time on, but considering many people just got free bounty without really spending a dime, you can't really be upset about it all that much, think of all the people who might have actually bought this coin, those are the real people should be mad about it.