I think Steem has a solid future, it is pretty unique and its infrastructure is outstanding. I recently read that Steemit was the fastest growing website in the US and the more that join the more valuable it becomes.
Dentcoin - that would be somewhat hysterical if it was not so pathetic. I totally agree, many of these altcoins will vanish after all the mad rush to get rich quick settles down.
I hoe you are right about criminals and scammers not hurting the industry, I really do for they are my biggest concern as they are John McAfee and other online security experts. However, I have a feeling that security it about to get better as I think the crypto space understand the problem all too well. White hat coders surely know that crypto is a good thing over all and they need to do something now to fight back if they want it continue.
2 or 3 years in the crypto-space is pretty much count amount to 30 years in the real world - I cant imagine how it will be at that time. -  I guess we are all part of a big experiment here and there are bound to be ups and downs. We either hold o tight or get off the ride.
Always good to hear from you my good fellow -as always