I've found this true as well. I read on All/New to see everything. The growth rate at the moment is high, so there are lots of posts from magazines in other instances. I subscribe to the ones I find interesting and eventually will switch to Subscribed/New.
I'm preparing for a game convention in July right now. I'm running Savage Worlds (SWADE), Marvel RPG (FASERIP), Joker (a homebrew game system using playing cards) and a Murder Mystery (no system, all roleplay).