Development on the Cata realms has stopped for the time being, so we can work more efficiently on WotLK and MoP. Spreading development across all 3 at the same time is extremely inefficient, and just not plausible. We are allowing the Cataclysm realms to exist "as is" instead of upgrading the realms to MoP and merging them with Frostwolf, as was suggested by the staff
here. The Cataclysm players spoke up, that they didn't want to lose the expansion they enjoy the most, despite whatever bugs it may have, so we are allowing them to keep it out of courtesy and respect for them. (We may resume development on it at a later time, but not until we feel WotLK and/or MoP are at an appropriate level of quality.) That being said, if you don't enjoy our Cataclysm realms, then please, go elsewhere and play. These complaints and blatant disrespect towards the staff isn't welcome here.