The altcoin zone is almost becoming a dump site for shitcoin. With just anyone being able to come up with a token on any of the blockchain makes it easy to have shitcoins littered all over the place. But the question is; who is going to clean up the mess? Natural death or a regulation is going good to be imposed later?
When I first the title I didn't understand what the question was about 
. The altcoins that we do not really use or has insanely low volume usually go away in time or at least they are not really cared for after a while, even if they exist they basically gone from the hype they once had and now living on life support. We do not need a coin to be completely wiped from face of the earth because even if 2 people still use it that means it exists but its as gone as possible.There are thousands of coins that was created and now "gone" but they are still somehow in some exchanges or at least wallets could be downloaded but that doesn't make them really relevant. The only coins people care about is top 250 coins and even some of those coins do not get enough attention, so aside from the top 20 coins the interest drops down a whole lot.