Because legacy servers is a bad idea that will no doubt have a negative impact on live. Seems like a good idea to speak out against it.
I'm not against being social though, it's just that vanilla was not more social in any way. It just lacked to tools to do certain things we can today.
Sure, you're not wrong here. Dugeons or any content that offers more challenge is more likely require coordination and I'm all for that.
Not that vanilla content was all that challenging. TBC heroics or Cata heroics, thoes are some good 5 man dungeons that actually was a bit hard or mythic raiding and challenge mode today.
I'd love more of that in the game. Vanilla had nothing like it however.