I think it would be fun if you can queue for old raids to find random people to do it with.
The queue would put you with as many people as necessary. Example.. if you queue as 90, it'll pair you with 1 or two other 90's for like bwl or aq40.
If you queue Ulduar ( 10 man ) itll put you with 1 or 2 others, if you queue ulduar 25, youll get paired with 7-8 other 90's.. or whatever they feel you can clear safely.
Obviously you don't have to queue with strangers if you dn't want, but it's a nice OPTION to have for ppl who feel like randomly doing old raids with CRZ with similar interests.
Want to do Naxx but cant find others and don't want to solo? Itll pair you with people, preferbly different class for balance and loot.
Since it'll be OPTIONAL, you can't keep saying omg dumb idea, hope they dont do it.. it wont AFFECT YOU in anyways, it'll just bring more options to do old raids.
---------- Post added 2013-01-09 at 11:13 AM ----------
And you can get an option to get paired with 60's 70's who want to twink.. if you choose the option to group with them instead of your lvl people, you get extra rewards for "carrying" them.