So some guy 51%? lol, the guy stripped naked for 25 btc?
Whoever did this, 25 btc or even 25000 btc is too little for what you gained from losing you morals, ethics and earning bad karma. Here in India, we guys believe strongly in karma. Do you know what this bad karma can do? It will teach you many hard lessons in your coming life, be prepared!
What goes around comes back around
You are absolutely correct. However, for a crap coin with serious technical flaws, it should die. All altcoins are essentially experiments. There are WAY too many junk coins right there. All coins are open to attack; only the strongest coins will survive. The community will learn precious lessons from those failed coins. To some extent, the attacker actually helps us to build a healthier cryptocoin community.
Theoretically, for this specific coin, 51% attack is indeed possible. HOWEVER, I don't believe someone can earn 25BTC by attacking this coin; the market depth is so shallow. Perhaps he just wants to make everyone panic selling and buy some cheap coins
For the time being, I would suggest that C2 implements mandatory transaction fees to give miners some incentive.