@Neutrino typically your system should be on the Qtum network ready to participate in processing transactions.
By staking, you're saying you want to participate in processing transactions in the network in order to make some income from transaction fees and possibly block rewards. So QTUM network demands that you deposit (stake) some asset to show commitment and also as a guard against fraudulent behavior. That means if you attempt to defraud the system you can and typically will lose all of your stake.
Therefore the more coins you stake the higher your chances of processing more transaction blocks.
I'm thinking about the Qtum wallet itself, you can grab the source and compile it now.
Does that require the Metropolis update?
I was under the impression that the network was live as the mainnet source has been released, I guess if we are before fork and coins have not been swapped for Tokens then the Metropolis update if required can be added safely.
There's also the Bitcoin exploit that has to be patched for, the joys of combining two codebases is double the work keeping up with updates and bug fixes.
This is not a video game forum, this forum is for the qtum blockchain. It's an organization used for cryptocurrency. You complain about Reddit being cluttered and now you yourself are cluttering up this forum.