It is wrong of him to refuse to take a risk, when he views the complaints of the service as legitimate?

It is wrong for him to refuse taking a risk when there are opinions that weigh in the favour of the service and when there's nothing to lose. He doesn't even have to spend money on anything, he can very well try a demo.
Never said not taking note of the bad comments but at least in this case most negative comments are also blown out of proportions. Also, by stating the fact that you'll never at least try the service you're not taking note of the good comments on it. Double standards anyone?

COUGH COUGH.
Not really related...but...OH HELL, CHECK OUT WHO HAS A STEAM ACCOUNT:
http://steamcommunity.com/id/souljaboytellemsodmg

Funny how like all morons, he jumped into MW2's multiplayer and skipped the quite excellent singleplayer.

I had no idea Weclock was such a fan:
http://steamcommunity.com/groups/Tim_Gunn_is_sexy

You skipped the first moronic notion: buying MW2 for the PC.

Because unfortunately (or fortunately) people tend to give more details when something is wrong rather that when something is right (which doesn't mean that their criticisms are always true). And that goes to everything you buy whether it's a video game, a camera, a car or a house. Overall, It doesn't help me much to know that the product or service is good without explaining why.

QFT
IW has backstabbed PC players and I see no reason to support them.

Did you miss this for example? Or other posts in threads that bashed Steam around here and all over the web? We might not be as vocal as those who found the service displeasing but that doesn't mean that we don't bring arguments every time we decide to post in these kind of threads.

Gog is not the only forum on the internet you know.

Do you really want me to go and give you the links to similar posts on the ArsTechnica forums, or on the Escapist, or the discussions had on the Gamers With Jobs podcast (listen to the most recent episode) as well as the associated forum or other forums on the internet?
Yes, I know GOG isn't the only one, I've had the same exact talk on many other boards, I was just pointing out to the first one that came to hand.
And again, how many of us who don't have problems with Steam do you think even open threads with titles like this one? Yes, we might be to blame as well for not advocating for it and responding on every thread that spreads FUD but you can clearly see here what happens when we do.

Try posting something critical of Steam on the official Steam forums. If you think that those who speak out against Steam are mindless and inspired by emotional arguments, you will find that those who blindly support Steam are far less reasonable.

I agree that the Steam forums aren't the place to be, either to be critical of the service or to see the people who praise it, that is why I gave examples of respectable places in regards to the people who visit them.
As for the locked and deleted threads on the Steam forums when bashing is done, it is their policy and it is clearly stated. If you do post such a thread and then it is deleted and then you bitch about it I'm sorry but you have failed to understand a simple TOS.
Yes, it might not be a good part of the TOS but it is built to keep things civil - if you have an issue you can always raise a ticket. Also, let's not compare a community like GOG with its current number of members to one like Steam because as we've seen again and again, once more people start joining a certain group the median value of that group decreases.

Sure, why not.

What's the most that a good comment on something like Steam can say? "Service works exactly as advertised, no problems to speak of." It doesn't provide much additional information if one is already aware of just what the service is supposed to provide. I suppose comments about the quality (or lack thereof) of support could be useful, although even if such comments state that the support is excellent the comment is already starting from the fact that something about the service failed, so at best such comments are a wash.
With products like games both positive and negative comments are useful as there are a large number of unknowns for a customer considering purchasing the product, but with services like Steam there are significantly fewer unknowns, which basically boil down to "Does the service work as advertised? If not then in which way, and with what kind of frequency and severity?" For answering these questions negative comments basically provide the kind of information being sought, while positive comments don't really bring much to the table.
What such comments basically communicate is what the potential problems one might encounter with the service are. At that point it's just a matter for the individual to decide whether the service, when functioning as it should, is better than the other options out there to enough of a degree to outweigh the potential problems if the service ends up not working as it should. And while I shouldn't have to point this out, this kind of analysis is best done before actually sinking any money into products from such a service.