You are right; Darkcoin is only the most successful alternate 2014 scam: This thread summary well what developers and others have done:
https://bitcointalk.org/index.php?topic=754521.0 and this article:
http://www.cryptobang.com/2014/08/27/investigation-of-darkcoin/ There are too many issues with this coin to be only a 'novice' developer mistake; All the issues were set on purpose, and added from a fork of the proper, non faulty and well designed 'litecoin' source code.
These pump and dump, and other better structured scam coins, only kill the trust of investors and miners; We may just hope that the trust will be back one day. But anyway the trust will never come back if these scam coins are still around. 'Ejecting' these bad coins is a goal by itself for the sake of alternates.
No. This is wrong. Darksend is not "only a CoinJoin" implementation. It's not like he copied it and put it there.
It's Evans personal CoinJoin implementation. What does this mean exactly? If I modify my OS (win7) you can't oh it's only Windows 7. The anonymity works now, so that point is also wrong.
Moving on in the article it keeps getting worse. Some of these points are not even really related to Darkcoin nor the developer.
Blockchain forks are bad? Unexpected price drops?

I was there the week when the coin was launched, I've checked the code. And that's right, some strange 'bugs' are there. This is quite bizarre for a 2014 coin stated as an innovative one; If you are looking for a 'trusty' 2014 coin; this is definitely not the right one.The facts given in the other thread can be checked, the instamine issue is there and can't be denied. And these issues have consequences. Can we really trust a faulty coin?