ResidentLeever: What's even the point of Galaxy?
A more pertinent question would be: "Why push Galaxy to the point of removing or obscuring alternative download methods?"
And the answer is: multiplayer.
Galaxy can only succeed as a multiplayer client if lots of people use it. Then anyone looking for other players for game X is more likely to find them, which encourages them to use it more/recommend it to friends/etc creating a virtuous circle. Without enough "bums on seats", Galaxy multiplayer risks becoming a comparative desert with perhaps only a few of the most popular MP games attracting sufficient players.
Being DRM-free clearly helped GOG in its initial phase and still is a (nearly) Unique Selling Point along with making previously unavailable golden oldies purchasable. But these aren't enough to compete (in most gamers' eyes) with the multiplayer, modding, overlays, streaming and other options Valve have been including - and GOG can't throw money away on freebies in the way Epic/EA/Ubisoft could.
So Galaxy is now their Great White Hope and our Pain in the Arse... ;)
GameRager: Honest question(I want to hear your reply to this).....what is the big deal if companies know that misc data?
...To me, I couldn't care less who knows how many games I play and for how long(I don't mean in galaxy, I mean in general) or other misc data.
The type of games you play can provide an indication of your personality and the time/frequency of play can provide lifestyle data such as marital/family status, social life and income level. "Social" games can be mined to provide further details of friends and family.
Worst case, gaming data is almost certainly going to be used by current/future employers and people "faking a sick day" in order to play a new release could find it resulting in disciplinary action in the same way that a careless social media post ("Hey I'm taking a sickie!") could. Credit-worthiness is another area likely to take increasing account of gaming activity (probably along the lines of "too much games" = "bad").
The key thing here is that the entities selling and buying data on you aren't doing so for your benefit, but because they can extract benefit
from you. This is clearly obvious with targeted advertising that aims to get you to purchase (or purchase at a higher price) but behavioural profiling has a hidden side also.