Steam has introduced a system that allows you to individually hide games in your library from other users, so your playtime and achievements from those games will be invisible to everyone while the rest of your library can remain public. You can also mark games as private in the shopping cart before you buy them so the “User now owns new games” message won’t appear in the activity feed.
So if anyone was holding off on buying some games featured on this site out of privacy concerns (which I definitely wasn’t. What, no, those sudden purchases don’t mean anything…), Steam now has a way to keep them hidden. Wish lists are still the same as they always were, so people can still see whatever you put on there if yours is set to public/friends only.
There’s some other new features too if you want to check out the full update post, hopefully wish lists will be getting the same treatment soon too.