I don't. As a consumer, I go where my dollars stretch the furthest, and GOG isn't the kind of hill that anyone should be dying on anymore, as they themselves aren't exactly frontliners for the type of mentality that proliferates threads like these. Furthermore, tying yourself into some imagined ideal against the "big, bad, company" narrative is stupid, because at the end of the day, no matter what store you buy from, they all want one thing: your money. Therefore, if I'm treated well, the staff are helpful, my issues are met and resolved, along with my conditions for what constitutes a fair deal to me are met, then I'm probably going to purchase there.

I don't understand why some people insist on creating stupid subdivisions in gamer communities to begin with. It's essentially a dick-waggling contest to prove that somehow, some self-righteous dork somewhere is so much hardcore than the rest of us plebs, because those of us that don't crook the knee to whatever ideals they dream up are "ruining the industry." It's also pretty hilarious how many of those same people champion Epic as a viable alternative, like they aren't backed by a far worse corporation than Valve. NONE of these companies, GOG included, care about anything other than profits.

Having said that, I don't prefer DRM'd games, and as such, if it's under any major ones outside of the coin toss of people who don't understand what Steamworks is and actually does, then I avoid it. I would also like the option of offline installers to serve as a kind of backup, just in case. I'm mainly here for the old games. It's why I came, and why I continue to shop here. I own hundreds of games here, and some purchased at full price, in order to show, with my dollars, why I shop here.
Money is money, and yours aren't somehow monetarily worth more, because you don't spend them elsewhere.