There are way better places to focus your resources, even if this curation isn't taking much effort. Honestly, it's an afterthought. How many of your current followers are just following because it's Giant Bomb? I imagine that's how it is for all popular curators. This is really a free way for Steam to favorably align themselves to top streamers and other outlets such as Giant Bomb without needing to offer any kind of real incentive. They give you a home to promote their products directly on their platform in the guise of helping promote more obscure titles.
Of course, I don't want to seem that cynical because I have no doubt their original design goal was to help garner more exposure for different titles... but honestly, this played out the way most of us could have predicted. Those who are already established on 3rd party platforms have the largest followings and most incentive to use the platform. Everyone ends up getting all their info from the same sources. So what purpose does the curation process really serve in the grand scheme of things? I can't imagine any more than a negligible amount of people have discovered Giant Bomb as a result of the Steam Curator program. I do, however, wonder how many more users and purchases Steam can convert by (theoretically) having an "official" base for the huge nodes of varying fanbases that they will (maybe?) see from having access to each respective camps' followers. Ultimately, the curator program ultimately seems to be a huge favor to Steam and a minor marketing tool for everyone else.