tbh i've yet to see it as an issue... 90% of the **** people sell/buy is on atl... And the rest of it can easily be moved there.
THe only people who seem to have an issue with it are the non-conformists who hate shard shields. Also it's just as easy to ask what server an item is on, as it is to post what server the item is on, and if anything the opportunity to do that provides what seems to be a now rare chance to actually interact with a seller/buyer... Outside of "Xm. XXm. XXXm.. Xb." etc
People here are human beings, they make mistakes and they forget things... It's honestly not only on the seller to provide info on where an item is, but also a potential buyer's responsibility to know where the item is that they are trying to buy. Should a seller be reprimanded for forgetting to or failing to initially state where the item is? Sure, if stratics wants to still be around and used at all. Otherwise it's a stupid idea.