I don't think a network security is a issue, no one can prove 51% attack occuered, what we need is marketing like litecoin so many people will use it as a cheap payments
Network security is a big issue. Current network hashrate is 1.2MH/s. This coin can be attacked very easily now. A couple of Gridseed Orbs could 51% it.
The first thing that needs to be fixed is mining rewards, so there's an incentive to mine.
Until then there's little point marketing to build a community of end users.