There are MANY posts just like this, if you opted for their Feedback Mailing List you received one.
A LOT of people got one, hence why they removed it.
Yes… There is a new expansion, is it so crazy to assume older dungeons are a bit slower? They will pick up as people get done with Wrath, and there are MANY on my Mega Server leveling alts and doing lower level dungeons too.
Server Identity is one of the CORNERSTONES of Classic WoW, the bonds I built with the guilds and people on my server has lasted well over 3+ years now from the start of Classic as I was here BEFORE it became a Mega Server.
Just because YOU are a Retail Tourist doesn’t mean the rest of us are, we PREFER our Server Communities.
WITHOUT RDF, people are exploring the world, running around and seeing new sights and meeting new people.
The world is MORE alive due to NO RDF.