@RaRaRadyo blocked users can see your items still. It is a serious bug if they can still message you. I've had this issue since I created my account and customer service seemed to put the blame on me. I contacted Mj, the forum manager, and she was deeply concerned about this bug. She has passed it on to the appropriate people in Offerup.
I have tried on numerous occasions to post a glass canister with photos and description and it never shows up on my offers or when searching for it. There is nothing against the rules for a glass canister such as you would use on your kitchen counter for grains. This has happened with 1 or 2 other items as well and it is quite frustrating but I cannot find any way to solve the problem.
I also posted an item yesterday and received a message from a potential buyer to day. I replied to the buyer. Now the item does not show up on my offers at all but it does show up in the search. Why isn't it showing up in my offers?