Tim Schafer and Double Fine in general have done a lot to earn people's trust over the years through their transparency and overall frankness about their struggles/successes/etc.
a lot of Valve's goodwill comes from when they were the same way, hiring the mod teams for CS, TFC, etc., the way they presented the TF2 updates, etc. that's obviously shifted but they worked hard to also sell Steam when it was just Valve games still to people and then a few indies trickling in along with Rockstar/2K; that's diminished but Valve still holds goodwill from that
Epic's weirdly secretive nature and the way these announcements are coming out, especially when there's Kickstarters or worse, pre-orders open, already gets people questionable about it, but some teams like Obsidian can use their goodwill and sell it
it's funny in some ways because as much media handwringing about how Gamers are not appreciative and hostile towards developers and games journalists, certain groups of those parties are right back at it in the same way, which just fuels the cycle over and over
Epic's trying, but it's sorta ass-backwards to how Valve accomplished their store, Epic isn't really selling the platform yet as much as trying to grab users piecemeal (via Fortnite, via exclusives, etc.) while they get to establishing the user experience well down the road, just look at the Trello map (and the hints at how much manpower the client experience itself gets)
