This coin is gonna blow up once people realize they can mine it just by holding it in their wallet

How does that work exactly though ? I think that needs to be in the OP.
Basically it's a lottery, each coin you hold can be considered a ticket. Every 60 seconds a "ticket" will be drawn to be the miner and the miner gets his reward. The probability of having one of your coins picked depends on amount of coins you hold and amount of total coins minted, for the start of POS it would be n/1bil * 100 where n = coins held
If you're not connected to the network then you can't have the chance for your coins to be picked and it will roll over to another coin on the network
When you say connected to network, you mean just having the coins in your storage? If so, does this require the wallet to be open and unlocked at all times?
Yes your wallet must be open and unlocked. You can unlock it for staking only.
in the console type:
walletpassphrase <password> 9999999 true
9999999 or however many seconds you want to unlock to generate stake
true to unlock for staking only
If you unlock for staking only you still need to enter the passphrase for transactions