No, because now you changed your reasoning. First you said they are bad, because they don't ask you. Which is wrong, they explicitly ask you to sign that privacy policy.
To be more clear
[all quote provided without additional source are those directly taken form Steams privacy policy]
Personally identifiable information protected under this privacy policy and collected from users may be done in conjunction with associates under agreement with Valve. If an associate of Valve is collecting such personally identifiable information within one of our products or online sites, Valve will make users aware of this at the time the information is gathered.
Now you want to have that optional. You changed the issue. To bad Steam doesn't allow that. Oh wait:
If a user does not want to provide this information, the user may choose to opt out of providing this information.
and
Corrections, Updates and Removal of Information
If you are concerned about the accuracy of personal information maintained by Valve or would like your personal information removed from Valve's records, please contact us by emailing privacy@valvesoftware.com for review, update, or removal of personal information.
But wait, how does this work? Steam sells information, right? They need that to run their business. Like clubbing baby seals runs their servers.
Let me elaborate:
By using Valve's online sites and products, users agree that Valve may collect aggregate information, individual information, and personally identifiable information, as defined below. Valve may share aggregate information and individual information with other parties.
Aha! Aggregate information is shared. Damn you Steam!
..... what does aggregate information mean? Well,
Aggregate information. The term “aggregate information” means collective data that relate to a group or category of services or customers,
from which individual customer identities or characteristics have been removed. Now we have this nasty of "individual information". You might think it mean "information about you as an individual", something akin to personal information. Which wouldn't be rather shady, but also
contradictory in itself. It actually just means information as a singular term as opposed to aggravated. But the important thing is that it isn't personal information.
Oh, and I could have avoided all that, because
look at what we have in the PP of Steam:
"Aggregate information" is information that describes the habits, usage patterns, and demographics of users as a group but does not describe or reveal the identity of any particular user.
"Individual information" is information about a user that is presented in a form distinguishable from information relating to other users but not in a form that personally identifies any user or enables the recipient to communicate directly with any user unless agreed to by the user in advance of such communication. This information may be used to improve Valve's products and online sites, for internal marketing studies, or simply to collect demographic information about Valve's users.
TL:DR:
Steam isn't collection more
personal information than any other store that lets you save your CC card or other payment options. All other information is void of any personal identification. For example, your ISP knows
everything about your internet usage. And they store it. And they can trace it back to you as a person with just one mouse-click. Doesn't stop you from using the internet, does it?
You can be pissed that Steam is earning money with data your playing provided. But that is pretty much like ref links, the user doesn't lose anything. Actually, the fact that this data is curbing Steam running costs, makes it easier for Steam to make those insane deals.
Because they want us playing. Therefore it might actually be beneficial for us.
Finishing touches:
You don't need to be a friggin lawyer to understand this. Steam certainly isn't a knight in shining armour. But it also isn't worse than most companies out there. On the top of my head I can name at least ten things that really suck about Steam and that hopefully will be addressed in the future/I'm currently "working around". However, I do not make up stuff just to fit my narrative. I don't let a preconceived idea about Steam being the love-child of Hitler and Stalin cloud my judgement.
I approach Steam informed and
without bias. Just as I approached GOG and GG and all the other services I use. And the internet itself would be a better place if more people would do it. If you don't like Steam, fine (Which is quite easy, I disliked Steam with passion up until 3 years ago). But don't like it for the reasons that actually exist.