Depending on server, Dina isn’t that bad, though it’s never been great honestly, it’s mostly for lazy folk who don’t feel like questing or running around much. It’s a nice place to grind when you want to level with minimal effort. I also state it’s entirely optional.
I also state that DP2 grinding is entirely optional. Also depending on group and TL, it actually does come out to similar if not better experience to questing. While I myself used to say grinding pre-210, or even 230 nowadays, is stupid. Having TL50, DP2 is actually surprisingly decent. 4M/h is pretty great at 150-ish.
Waiting to do dungeons is also optional, which I state, but if you manage to end your day with the listed dungeons and start the next day with them, it’s no time wasted and great experience gained. The 130 is the only one I recommend 6 runs minimum of, which, honestly is not necessary at all, but it does help push you ahead.
Quit being a jerkhole.