Have you ever supported, bought or mined a coin that died later on? Why did you support it? What did you learn from it?
Very hard to abandon project in that you believe and invested own money, so I had such experience. I learned that we all make mistakes and should not dwell on dead projects.
As I participated with different projects in bounty campaigns we can't predict that coins will be dead or not, that's why right now I am still holding the sgg coin I had even though the project still has no updates of their community. I was still hopeful that one day the devs will see another potential for this coin to grow someday. Its been almost a year since this coin was rewarded to me, but no further signs that this will show signs to rise or pump or be exchanged at other popular trading sites.