It's a totalitarian hit-them-with-a-hammer approach that truly needs to end.
I don't know what it will take for this to change but it has to change. For example, AdSense alone has left a trail of destruction like no other service out there. You read stories all the time about legitimate businesses being cutoff for no apparent reason without even the possibility to engage in dialog.
This thing with PayPal is downright scary. Having done tens of thousands of dollars of business with PayPal its one of those things that can keep you up at night.
The problem isn't the suspension of accounts for investigation. I welcome a responsible approach to preventing fraud at all levels, as a consumer and a vendor.
No, the problem lies in the fact that they don't engage in any kind of mutually-constructive dialog in order to try to determine whether or not there's a real problem. By not doing so they can ruin people's lives and, because they have so much money, they don't really care because it causes them no pain at all.
I for one hate government burrowing too deeply into anyone's affairs. However, this is one case where I find myself really hoping that one day we'll see Congressional action here in the US in order to protect us from the monsters that these huge corporations have become. Remember, vendors are customers too, not just the end-users/buyers of products and services.
This, very plainly, is wrong and evil.