Make an up to date vid and I doubt your friends will be using their mains which is where most of the high stakes occur. Unlimited spec isn't that good, you usually spec them out in 4. How much does the extended hp give you?
This is going to do nothing: they don't even know where to look. Like he said: if a bug doesn't get leaked it's going to take a long time for anyone to find it at all.
It's a shame, but if this does happen staking won't be possible the first week due to people abusing this.
Does the glitch involve Energy Transfer? As in you'd need multiple friends there to keep transferring energy? I'm guessing this will be patched anyway by the time staking comes back.
it's hard to answer all your questions, but no, it has nothing to do with energy transfer, it does heal all hp, it involves A "b" and a "c" account to activate the glitch.