Hey,
First in the sense of "Customminers domination and security loop holes and possible easier exploiting the gridcoin network hosting more than 51% wallet clients"
Those are seed nodes the initial nodes for a gridcoin new user to connect to. you would need 51% of the network total supply of active wallets to do that attack; not 51% of the seed nodes in code. thought i'd clear that up for any user reading this topic to avoid confusion. seed nodes are just the initial start and then the network passes along peers.
Also the neural network doesn't lock your coins at all nor does it have any control over the wallet itself (its an external dll). If you stake on a fork and then get off the fork back to the main chain a repair wallet needs to be called to correct the misspent coins (standard in all blockchains). In future this will be automatically run every so many blocks.