One odd thing about this thread is it may in fact achieve its goal, inadvertently (perceived goal, I should say ... the other goal may be extortion and financial gain). If I was a new investor to cryptos, saw this site... then this thread, I'd see hacking, extortion, racketeering threats, as well as people talking about destroying coins.
I understand your sentiment, and I think we're potentially headed for some turbulent times.
But without condoning the actions of the crypto-jihadists in any way, I believe this is just a natural phase we're going through, growing pains you might say..
There are so many coins that are produced without their dev(s) understanding the interaction of parameters or having awareness of the security risks.
This is even more unfortunate when the dev team has basically good intentions, but they inadvertently produce a high-risk coin, that can be taken down by some kid with graphics cards.
I am of the opinion that a cryptocoin need not embody a technical innovation to justify its existence (although that of course is a plus). They can be also be used to build communities, and Dogecoin was the first to demonstrate that. In future cryptocoins can also be used to strenghten existing communities by being used for purchasing services and products in a specific niche.
But for this to happen, these next gen altcoins need to become more conscious of the vulnerabilities. And this current brouhaha could be the key stepping stone towards that goal. So brand new devs need to delve somewhat deeper into code, educate themselves on checkpoints, diff adjustment and other security-related topics, than they have done so far. A coin that can demonstrate its strength against attacks will have a serious selling point that attract investors.