Some details here. On my PS4 system, there is one main account, and one sub account of that main account. The main account has PS+. We buy it yearly, it doesn't expire until May. From Destiny launch day, till yesterday, the sub account was able to participate in all activities that required a Plus membership. But upon logging into the sub account today, I cannot access any Plus exclusive features. The main account still has access however. I find this VERY confusing, especially since this weekend is Sony's free PS+ For All promotion....