The following is an issue affecting a good portion of the collecting populus. One way or another.
Crieve, the Author of All The Things has written up a presentation I think many could learn from, potentially advocate for.
"Did you know - Unique Source and Visual IDs coming to Cataclysm Classic?
Hey @everyone, since no one at WoWHead or MMO-Champion or Blizzard has mentioned this, I wanted to bring to light something that was discovered on the Cataclysm Beta earlier this week once Transmog was officially made available for testing.
This is a fairly technical problem, so I’ll try to keep it as short and simple as I can.
The ID numbers used to represent appearances (visualID) and sources of appearances (sourceID) for every transmoggable item on the Cataclysm Beta are completely Unique to Classic. They have no cross over with the Retail versions of the same items in any capacity. An item like Corrupted Ashbringer has a sourceID of 8925 on Retail and the same item has a sourceID of 133090 on the Cataclysm Beta.
This means, on a technical level, should an account merge or a character transfer going from Classic to Retail ever be made available, your transferred character would lose every transmog it has ever collected after making the transition. I know that currently they don’t have any plans to allow for this sort of transfer to exist, but should they ever consider this as an option down the road, they could not provide this service without incurring an insurmountable amount of technical difficulty for little to no benefit.
Once this goes live, fixing this would become a huge problem as it would impact player database tables, item database tables, etc for millions of characters on hundreds of thousands of accounts. This needs to be fixed now while on the Beta should there be any realistic chance to get ahead of the problem since anything in the player database table can simply be discarded on beta. Fixing those tables after launch would be problematic and potentially take several hours/days depending on the complexity of the conversion and the amount of collecting players have done over the years.
I know most of you have no idea what I’m talking about. That’s fine. If you know someone that’s working on WoW or works at Blizzard, please relay this information to them so that they can speak to their higher ups and escalate this issue before it becomes a problem for us. If you want to read more about my concerns with this, I’ve written a post on the WoW Forums here: Transmog SourceIDs - Unique IDs to Classic?! "