No, PoW isn't the problem. People's greed on the other hand is the problem. They see a price of 1500 satoshis per *putnamehere*coin on any exchange, and they'll kill each other to sell first, this makes every coin unstable and eventually ruins it. Such people have ruined 85% of the coins out there, because they do not care about the coin and the idea that stands behind it, its community, and the work that has gone into it by its developers. And what bugs me the most is that they come up with the excuse "I have to cover running costs". Well, guess what. Cryptocurrency has never been created to make a living only out of it. Get a job and cover your expenses by it, and keep your coins long term. Leave aside the guys who got lucky with their Bitcoins. This will never happen again. If you want to have some bits left for you after you pay the electricity bill, fine. But leave the bigger part of us, who want whole chunks, alone. I.e. let the coin to mature, then add it on the exchanges. So what Silence wanted to say is, if you add the coin now on the exchanges, it will go sky high on the top 10 coins to mine list, people will jump in, diff will jump like a kangaroo on steroids, and you'll get nothing. So keep low profile and mine.

No hard feelings.