It sounds like Steam offered a great opportunity to be highlighted across the platform after recognizing a mistake in their system.

The author(s) have an opportunity now to showcase their decade of work and instead choose to post a wall of text complaining on reddit.

If I had the chance for a no-cost promotional spotlight for my passion project that would put many times more eyeballs on my game than my little wishlist would have, I'd be working around the clock to come up with the best way to capitalize on this really unusual situation.

But I guess complaining on reddit is an option, too.

Yeah it seems like not notifying the wishlist is an easily resolvable issue. Seems more like the market and appetite for terraria style games has saturated in the decade they took to release.