2 friends coming back to wow, but is it still fun?

[Thaela]

but didn't they make these commendation badges that increases rep gain for your alts by an insane level?

Yes but why would I want to grind rep on every single alt I have? I don't, and I won't. The system is horrible, and basically dissuades people from being able to efficiently gear up alts.

[Arbs]

I'm having a ton of fun, but I can only speak for myself.

This basically is what I would say. The best people to ask are the people who are actually playing it.