This is self explanatory; to all who do not support the idea of ownership, there shall be no more funding, regardless of their game’s quality.
Advice:
buy from GOG, avoid single player games which require internet connection or 3 party launchers.
Repost from reddit:
https://www.reddit.com/r/StopKillingGames/comments/1ugzirg/stoppayinggames/
I thought that may have happened with Only Up!, but it may have only been temporally delisted for copyright violations by the developer.
Looks like it happens fairly often for bad G2A codes or other redeem code fraud, which seems fair. People report that you can get the money back as store credit.