There seems to be a lot of little things like that. I have 2 paid accounts and they used to have exactly same expansions and pre-order items. At some point though the two seemingly identical accounts started to get different upgrade options. One of them got "Get LoX + 30 days game time for X dollars" for same price as the other one only had option "Get all expansions for just X dollars" which didn't include any game time. I tried deleting the payment info from both of them at some point just to test if I could still post and neither one of them was able to post when not paid. Actually one of them won't be able to post for few days after reactivating. That was my biggest reason to actually start using froob account to post regardless of the status of my accounts.