This is exactly why this shit constantly annoys me. Steam is not unique in how they handle their store. If you don't want to pay Valve a fee as a dev, then don't put your game on Steam. No one is forced to do that.

Now, you will lose many sales. But a service being popular does not make it a monopoly. Other stores exist, and are even discussed in the article. All of them have some similar method of getting add-ons. Steam's happens to be very easy -- again, that doesn't make it anti-competitive.

Also: the fact that this is about "PC monopoly" and "Microsoft" is not mentioned is just... wild. And sad.