It's one about deliveries.
Background:
Live in flats, my building itself has 10 but it's in a gated compound with lots of these buildings. We have small mailboxes outside and then one door to enter but with no trades button. 3 floors.
Whenever I've not been in for a delivery, which is 95% of the time as I go out to work, courier gets buzzed in by another neighbour and packages are left in communal area or sometimes outside the door. I've never had an issue and am always grateful that they are left as it can be a pain to arrange a re delivery.
About a week ago, I came home to find a note taped on the front door (has glass and was facing outside) saying that a package for them had been left in the communal area but had been taken and they were asking for it back. They then ended it with 'its not nice to steal' which I was a bit 
about as I've once had a package accidentally left outside my door and I didn't realise until the next day when I went to open it. I of course gave it to its rightful owner. I've also never had an issue in the time I've lived there (over a year).
Anyway I assumed they were jumping to conclusions and it was probably a case of courier listing item as delivered when it hadn't been. Note eventually disappeared and all was quiet.
Then a couple days ago I found a new typed note taped in the door, something to the effect of 'deliveries: DO NOT leave items in the communal area as it's not safe.' It isn't an official notice form the property management company. I assume it's from the neighbour, and I removed the sign as I don't want it putting delivery drivers off leaving things.
Well last night another one was taped again. Slightly different words but essentially the same message, but now it's 'dangerous' to leave packages in the communal area.
My AIBU: was IBU, to remove it again this morning? I had a delivery due, and wanted to receive it! I've since received an email stating that it has in fact been delivered and left in the communal area.
To reiterate, this is not an official notice, those are always headed and signed and pinned to a notice board. I just feel like if one tenant isn't happy with their items being left then they need to put that in their delivery notes, and not dictate how everyone else in the building receives their post?