I actually have been displeased with GOG from time to time, saying such things as "none of these games interest me." and "when will we see something worthwhile?"
I'm more paraphrasing than direct quoting myself, but I'll go ahead and say these things now: Most of these games are uninteresting.

That I can agree with and I understand the frustration one would feel about waiting for 2 weeks without an answer.
Of course, it could just depend on the game. Some games before they were put through the GOG process were buggy to begin with. Anyone remember Messiah??

Go to google.com, search for ultrasurf, download, go to store.steampowered.com, buy games paying in USD. Problem Solved :).

Not at all. As I said, objectively speaking, GOG's service must be somewhere in between my experiences and Wishbone's (and yours, for that matter). Each of us is stating that the service is at some level based on our own experiences, we cannot possibly all be right, plus we are just a few specific instances of the GOG experience who actually bothered to report on it. The truth is far more likely with those who don't bother to report the exceptionally good or bad experiences, i.e. we are the exceptions, they are the rule. The key to keeping GOG on that even keel is to keep reporting those exceptional experiences. The hazard of that is it can create a false public impression, either far too positive or far too negative, which I believe is what has already happened here.

There are a ton of games out there that have been buggy. I hope when GOG does something like buys rights to a company's catalogue, it doesn't feel compelled to offer (or isn't contractually obligated to offer) all the losers just because there are a few must-have winners in the package. I hope the gameplay experience is important to them.
That's one of the key and few things I could see bringing down GOG. If it becomes COG (Crappy Old Games) or MOG (Mediocre Old Games) or CROG (Completely Random Old Games). There's a sort of trust in GOG that I think is widely shared at this point, and I could see that being squandered by the average company very easily. I've seen it happen with lots of companies before.
If GOG becomes successful enough to get bought out, particularly, the service could go into immediate and permanent decline as a new owner capitalizes off GOG's reputation and goodwill until both are finally driven into the dirt.

then when you start steam without that program, have those games permanently removed from your account and have to pay for them again.

On that we can agree 100%. The last thing I want to happen to GOG is for it to become the discount bin of games that no one wanted in the first place. It is far more likely (IMO) that the quality of GOG's games will decline before the quality of the service does. Unfortunately, it is really up to what the publishers are willing to offer GOG, so if all they are willing to give GOG is crap, then all GOG will have is crap and I'm not sure there is much we can really do about that.

ultrasurf is a program that starts IE using a proxy located in the US, it's not a "hack" tool. All you do is buy a game on the actual steam website (not in the Steam app). I fail to see how "traveling to the US for a weekend and buying a few steam games while staying there" will make your games disappear.
Also, if I go to the steam website on my university all the prices show up in USD, will they also remove the games from my account if the buy a game at school? Doubt it..
It's pretty known that you can't proxy traffic going through the steam application, no one ever said you can't use a proxy on a web browser..

Yeah. I just dread the shovelware stage, if it ever comes to that.
I'm iffy about some of the games I've seen here so far, but I still feel there's probably a better than average chance that most of them were put here because they were authentically good or at least very popular(and still hopefully decent). That makes me more willing to buy games than I would be if GOG just became a distributor of random cheap crap.

We can vote with our currency of choice and not buy the crap that does get offered...

The problem is Steam region restricts games, so once you start up Steam in your actual region, it will know you are not in the US where you (supposedly) bought the game. If the game you bought was restricted from your region, you will lose it the moment you log into Steam.

True, but that could lead to GOG just going out of business from lack of sales. Instead of discouraging certain sales, how could we go about encouraging the sales of games we actually want?

I have no definite answer to that question other than voting with your dollars and perhaps being vocal using the Feedback portion of the website to have our opinion known. it has been shown that GOG does take some of the more intelligent feedback and implements it if it proves to be feasible...

um, because the people at steam recognize that you bought something "outside of your market" and will remove it from you account and force you to pay "full price." for it.
they did it with multiple games, and there are multiple horror stories of people who bought a game while on vacation, brought home their retail copy, and when they went to activate it, the game was removed a short time later.

Yes, but the people who bought those retail copies did not do so on the USA, as you would be doing with my solution :). Everyone knows buying steam games in vietnam or russia is not wise..

You miss the point, it doesn't matter where you purchased the game, what matters (to Steam) is where you use it. So if you purchase it "in the US" as you would with Ultrasurf, the moment you "return" to your own country, say Russia or Vietnam, your IP address tells Steam that you are in a restricted area and removes the game from your account.