Well I sure am sorry bud that you are not happy with what I posted, but have fun, I think though, that you are going to have to find someone else to play with.
Listen, I'm trying to be helpful, not jerk you around, but what you posted doesn't seem to even fit with the topic of the thread. You referenced it as "proof" that the SKS gas system is overpowered.
The article you posted to is an internet forum discussion between non-firearms experts who want their brass to land in a nice pile less than a foot away from them on a bench when shooting custom cast bullet loads. The poster doesn't say anything about the power of the SKS gas system or make any assertion that it is too powerful, not powerful enough, etc.
In short, he's modifying his firearm away from design intent.
Yes, you could drill additional holes in your gas tube as well and yes, that would limit the rearward force of the bolt. I doubt, however, that this will affect the lifespan of the receiver.
The SKS receiver is built commie-tough from machined billet and is firing a round that doesn't wear out thinly stamped sheet-steel chinese AK receivers doing full-auto all the time. The basic SKS design was copied from an anti-tank rifle and is, quite frankly, overbuilt for the round it fires.
Additionally, the bolt does not contact the receiver cover at any time during firing. It simply doesn't physically touch it.
Don't take my word for it. Get a small piece of playdough and jam it onto the relevant surfaces of the gas cover, then cycle the bolt a few times with gusto. Remove the cover - the playdough will not have displaced to zero thou, which would indicate contact.
If it hits anywhere, it's on the "wings" machined into the receiver ahead of the receiver cover pin.
There is a buffer made to protect those wings, but as another posted pointed out, this increases the stress on the firing pin, which I see as creting more problems than it solves
