SE should consider providing its own VPN network to solve the lag problem

[Amberion]

Your analogy doesn't work. It would be more like an intersection on the way to the store is clogged because everyone uses it, so you complain to the store manager to fix it.

Well I would. I would complain about why they decided to set up at a location where you can't get to.

It's as real estate agency's say, location, location and location. S-E didn't bother to check if the location they setup shop at could handle it. Most likely they only considered the cost.